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Anand_n
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Username: Anand_n

Post Number: 4163
Registered: 02-2008
Posted From: 68.206.110.236

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Posted on Monday, May 25, 2009 - 01:29 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Wrathchild:

the number is called Kaprekar's constant named after Kaprekar mathematician from india..495 is the 3 digit version of it




Got it - thanks :-)
aa chal ke tujhe main leke chalu ik aise gagan ke tale
jahan gam bhi na ho, aansoo bhi na ho,bas pyaar hi pyaar pale
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Wrathchild
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Username: Wrathchild

Post Number: 3893
Registered: 03-2009
Posted From: 69.136.169.198

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Posted on Monday, May 25, 2009 - 08:40 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

the number is called Kaprekar's constant named after Kaprekar mathematician from india..495 is the 3 digit version of it
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Wrathchild
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Username: Wrathchild

Post Number: 3892
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Posted on Monday, May 25, 2009 - 08:36 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Anand_n:



Transcendental:




its not like a puzzle,because if u understand it, u can do it easily..its about a 4 digit number which is special in a way..

take any 4 digit number in which numbers are non repeating..say 1234

the maximum number that can be formed by rearranging it 4321
the least number that can be formed from rearranging it 1234

take the difference 4321-1234 = 3087..now re arrange this as above

8730-378 = 8352

re arrange it again 8532-2358 = 6174.

do it again..7641-1467=6174..this iteration ends with 6174.

take any other example and try it out..u will always end up with 6174 finally.

this works for only non repeating 4 digit numbers..
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Anand_n
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Username: Anand_n

Post Number: 4161
Registered: 02-2008
Posted From: 68.206.110.236

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Posted on Sunday, May 24, 2009 - 11:59 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Wrathchild:




Question ardham avvaledu - can you clarify it ?
aa chal ke tujhe main leke chalu ik aise gagan ke tale
jahan gam bhi na ho, aansoo bhi na ho,bas pyaar hi pyaar pale
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Transcendental
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Username: Transcendental

Post Number: 2461
Registered: 10-2008
Posted From: 24.183.180.146

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Posted on Sunday, May 24, 2009 - 10:14 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Wrathchild:



Q sarigga aatham avvaledu marv..

Anand_n:



_Trans _
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Anand_n
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Username: Anand_n

Post Number: 4158
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Posted on Sunday, May 24, 2009 - 09:55 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Nisarga:


sorry. d=2 and N=9 in this case




You are right - it needs another limiting factor ...yours looks more theoretically correct - validate cheyyaledu :-)


New_ccid:


Do you think it's Anad's formula, anyways, I really appreciate Anand�s memory power and patience to work on that old paper work.




LOL - it would not have errors like Nisarga found if it was not something I derived :-)


Jkm:

mee patience ki hats off. mee maths, logical thinking too much andi. 5 stars icha. naaku 2 mins think chestunte thala noppi vastondi.




Math was never a favorite subject, this also I used analogic reasoning pattern matching not mathematical formulae to arrive at:-)

Logic ishtam and puzzles solve cheyyatam necessity - at 42 years, brain needs to be exercised to keep it fit, else it will vegetate :-)
aa chal ke tujhe main leke chalu ik aise gagan ke tale
jahan gam bhi na ho, aansoo bhi na ho,bas pyaar hi pyaar pale
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Wrathchild
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Username: Wrathchild

Post Number: 3873
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Posted on Sunday, May 24, 2009 - 08:28 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

What is the least 4 digit number that can be arrived at by taking any
non repeating 4 digit number(1111 4444 etc) playing/re arranging it in such a way that the difference of the maximum value(after re arranging) and least value (after re arranging) is always the least 4 digit number?

Note: You will have to repeat the process of rearranging the number you obtain after taking difference every time until you arrive at the least number.
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Nisarga
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Username: Nisarga

Post Number: 149
Registered: 03-2008
Posted From: 123.236.135.250

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Posted on Sunday, May 24, 2009 - 08:08 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Transcendental:

How did you derive This formula?..




more of serendipity i guess :-). I thought this way:

total number of digits available = 10 ( i.e 9,8,7,6,5,4,3,2,1,0 )

D number of digits can be picked in ways P(10,D) = 10! / (10-D)!

the picked are in descending are in ways = 1/D!

So, the total number of ways : P(10,D) * 1/D!

Not sure this works correctly for all the number of digits ( of course D<=10 ) :-)
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Transcendental
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Username: Transcendental

Post Number: 2460
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Posted on Sunday, May 24, 2009 - 07:15 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Nisarga:

(10!)/((10-D)! * D!)



How did you derive This formula?..
_Trans _
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Nisarga
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Username: Nisarga

Post Number: 148
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Posted on Sunday, May 24, 2009 - 02:40 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

I think the right formula would be C(10,D); i.e. (10!)/((10-D)! * D!) where D is the number of digits. however D=1 is excluded :-).
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Nisarga
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Username: Nisarga

Post Number: 147
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Posted on Saturday, May 23, 2009 - 11:38 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Nisarga:

d=9;N=2. Does the formula work??




sorry. d=2 and N=9 in this case
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Nisarga
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Username: Nisarga

Post Number: 146
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Posted on Saturday, May 23, 2009 - 11:31 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Anand_n:

(N)*M(1) + (N-1)*M(2) + (N-1)*M(3) ......(1)*M(N)

Say for 5 digit number we solved yesterday it was - N=6

6*1 + 5*4 + 4*10 + 3*25 + 2*35 + 1*56 = 252

For an 8 digit number, N= 3

3*1 + 2*4 + 10 = 21




what about for a 2 digit number!

d=9;N=2. Does the formula work??
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New_ccid
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Username: New_ccid

Post Number: 612
Registered: 11-2008
Posted From: 68.197.155.52

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Posted on Saturday, May 23, 2009 - 11:11 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Jkm,

I forgot to mention a thing in my previous post, you too, good at coding. Keep it up. I like that. have a great time buddy.

I can’t have soda like Coke, Pepsi, or any other one on the rocks; I like to dilute it in the weekends.



chill out.
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New_ccid
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Username: New_ccid

Post Number: 611
Registered: 11-2008
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Posted on Saturday, May 23, 2009 - 10:49 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Jkm:

there are n number of formulas.
but once you have the formula in your hand, it will be easy to write code.
you need pen and paper/black board to derive the formula.




Well, I knew that, I could make your code, even simpler way too.
You know what, as long as you have the formula, it’s not at all a big deal to write the code, even in assembly language too. I totally agree with you. It’s pretty easy to write the code in several diff ways. What I mean to say is, there is no best solution for any given problem, it just depends on the time and situation, do you got me?
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Jkm
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Username: Jkm

Post Number: 2842
Registered: 02-2008
Posted From: 216.235.145.202

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Posted on Saturday, May 23, 2009 - 10:33 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


New_ccid:



there are n number of formulas.
but once you have the formula in your hand, it will be easy to write code.
you need pen and paper/black board to derive the formula.
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New_ccid
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Post Number: 610
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Posted on Saturday, May 23, 2009 - 10:31 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Jkm:

Anand's formula implementation in C language . simple and modular




Do you think it's Anad's formula, anyways, I really appreciate Anand’s memory power and patience to work on that old paper work.
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New_ccid
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Username: New_ccid

Post Number: 609
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Posted on Saturday, May 23, 2009 - 10:27 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Jkm,

There is no proven mathematical formula in this world buddy, till some other mind, provides the evidence that it's wrong, we gotta live with that one. However, as I said before, there are N numbers of solutions for any given problem. We just gotta pick one out of N that dish up the current goal in a superior style.

Take it easy.
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Jkm
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Username: Jkm

Post Number: 2841
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Posted on Saturday, May 23, 2009 - 10:17 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Anand's formula implementation in C language . simple and modular


int getMyNum(int d) {
unsigned int n = 11- d ; // int is fine here
unsigned int cnt = 0;
unsigned short int k = 1;
while(n>0) {
cnt += n*m_sum(k);
n--; k++;
}
return cnt;
}

int m_sum(int p){
unsigned int tot =0;
while(p> 0) {
tot += s_sum(p);
p--;
}
return tot;
}

static int s_sum(int x)
{
unsigned int tot =0;
while(x >0)
{
tot += x;
x--;
}
return tot;
}

int main(char* argv[], int argc)
{
printf("\ncount: %d\n", getMyNum(5));
return 0;
}
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New_ccid
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Username: New_ccid

Post Number: 608
Registered: 11-2008
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Posted on Saturday, May 23, 2009 - 10:03 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Jkm:

try to use a proven mathematical formula in your code




Jkm, what does it mean, I did not get it.

To the best of my knowledge, there are N number of solutions at hand for any given problem.
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Jkm
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Username: Jkm

Post Number: 2840
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Posted on Saturday, May 23, 2009 - 09:49 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


New_ccid:




good job. try to use a proven mathematical formula in your code.
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New_ccid
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Username: New_ccid

Post Number: 607
Registered: 11-2008
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Posted on Saturday, May 23, 2009 - 09:25 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Here is a simple c program to do the job. That too, after having some Glenfiddich, I am furnishing for u ;)
It’s works for 0 to 10 digits numbers.
No Offence. world become small cause of sharing zeor's and one's from one node to other, no need to have that old math stuff, its gonna be a paper less world.

Here you go.

int StrictlyDesOrderDigitNums(int iNumDig)
{
unsigned long lNum = 0;
int iCount = 0;
int dig1 = 0;
int dig2 = 0;
bool bFlag = true;
unsigned long lMaxLim = 0;

int iLastSrs = iNumDig - 1;
int iSrsCount = 0;

if ( iNumDig > 10 )
{
printf("Get a life buddy,this works only for 10 base system\n");
}
else if ( iNumDig == 10 )
{
printf("9876543210\n");
return 1;
}

for (int i=0; i < iNumDig; i++ )
{
lMaxLim = (lMaxLim * 10) + 9;
lNum = (lNum * 10) + iNumDig - (i + 1);
}

while ( lNum < lMaxLim )
{
long lTest = lNum;
bFlag = true;

while ( lTest > 10 )
{
dig1 = lTest%10;
lTest = lTest/10;
dig2 = lTest%10;

if ( dig1 >= dig2 )
{
bFlag = false;
break;
}
}

if ( bFlag )
{
if ( iLastSrs != lTest )
{
printf("\nSeries count: %d\n\n", iSrsCount);
iLastSrs = lTest;
iSrsCount = 0;
}
printf("%d ", lNum);
iCount++;
iSrsCount++;
}

lNum++;
}

printf("\nSeries count: %d\n\n", iSrsCount);
return iCount;
}
int main(char* argv[], int argc)
{
printf("\nTotal count: %d\n", StrictlyDesOrderDigitNums(5));
return 0;
}
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Jkm
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Username: Jkm

Post Number: 2838
Registered: 02-2008
Posted From: 76.97.225.162

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Posted on Saturday, May 23, 2009 - 09:15 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


New_ccid:

Java / C / C++/ pascal / any other lingo, not a big deal to resolve this kinda silly problems, no need to go for that old derivation stuff. Again no offence.It's jus matter of engaging CPU for some silly sec




its a number puzzle. puzzle is something we need to solve without using machine/calculator or programming language. i could write a program but honestly couldn't come up with a formula to do it with pen and paper.
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New_ccid
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Username: New_ccid

Post Number: 606
Registered: 11-2008
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Posted on Saturday, May 23, 2009 - 09:07 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Jkm:




Java / C / C++/ pascal / any other lingo, not a big deal to resolve this kinda silly problems, no need to go for that old derivation stuff. Again no offence.It's jus matter of engaging CPU for some silly sec. :-)
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Jkm
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Username: Jkm

Post Number: 2836
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Posted on Saturday, May 23, 2009 - 08:51 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Anand_n:




mee patience ki hats off. mee maths, logical thinking too much andi. 5 stars icha. naaku 2 mins think chestunte thala noppi vastondi.
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Jkm
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Username: Jkm

Post Number: 2835
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Posted on Saturday, May 23, 2009 - 08:48 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Anand_n:


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Jkm
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Username: Jkm

Post Number: 2834
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Posted on Saturday, May 23, 2009 - 08:45 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


New_ccid:

Evi aanii chinnapattii lekkala pustakala stuff, not a big deal, now lazy to work on it, however, glenfiddich sakshi ga, I am telling, I can provide a solution for this with in 10 min. in C language, if wanna learn how to resolve it using C, I can furnish the code, with in 10 min. 10 years kritham cheysam this kinda derivations and all.
No offence.




morning java lo code vrasi 252 correct ani check chesa
int count =0;
for(int a =9 ; a >=0; a-- )
for(int b=8;b>=0;b--)
for(int c=7;c>=0;c--)
for(int d=6;d>0;d--)
for(int e=5;e>=0;e--)
if(a>b && b>c && c>d && d>e) {
count++;
System.out.println(""+a+b+c+d+e);
}
System.out.println("count :"+count);
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New_ccid
Junior Artist
Username: New_ccid

Post Number: 605
Registered: 11-2008
Posted From: 68.197.155.52

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Posted on Saturday, May 23, 2009 - 08:36 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Anand_n:

Aha - figured out the formula for any number of digits.Ninna only 6 digit solve chesanu ...





Evi aanii chinnapattii lekkala pustakala stuff, not a big deal, now lazy to work on it, however, glenfiddich sakshi ga, I am telling, I can provide a solution for this with in 10 min. in C language, if wanna learn how to resolve it using C, I can furnish the code, with in 10 min. 10 years kritham cheysam this kinda derivations and all.
No offence.
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Transcendental
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Username: Transcendental

Post Number: 2459
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Posted on Saturday, May 23, 2009 - 06:46 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Anand_n:


perfect
_Trans _
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Anand_n
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Post Number: 4157
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Posted on Saturday, May 23, 2009 - 06:11 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Aha - figured out the formula for any number of digits.Ninna only 6 digit solve chesanu ...

Here's the formula for people who are like me and can't let a puzzle go :-)

Some definitions first :

S(x) = 1+2+3....+ x i.e. Sum of x natural numbers

e.g.

S(1) = 1, S(2) = 3, S(3) = 6....S(6) = 21



M(y) = Progressive sums of y S(x),

M(Y) = S(1) +S(2) + S(3) + s(4) .....S(Y)


M(1) = 1, M(2) = 4, M(3) = 10..... M(6) = 56

The key factor in the puzzle is the number of options for the units place.The higher the number of digits ,lower the number of unit place options.

To find the number of unit place options(N) - subtract the number of digits(d) from 11.

N = 11- d

so for 5 digits , d = 5, N=6
For 8 digits, d=8, N=3

Now the formula for number of d digit numbers with descending digits -

(N)*M(1) + (N-1)*M(2) + (N-1)*M(3) ......(1)*M(N)


Say for 5 digit number we solved yesterday it was - N=6

6*1 + 5*4 + 4*10 + 3*25 + 2*35 + 1*56 = 252

For an 8 digit number, N= 3

3*1 + 2*4 + 10 = 21

Enjoy :-)
aa chal ke tujhe main leke chalu ik aise gagan ke tale
jahan gam bhi na ho, aansoo bhi na ho,bas pyaar hi pyaar pale
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Nisarga
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Username: Nisarga

Post Number: 145
Registered: 03-2008
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Posted on Saturday, May 23, 2009 - 01:14 pm:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Anand_n:

It is 252 - see my posts 4137 and 4140..




right. i missed some subtotals while counting :-).
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Anand_n
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Username: Anand_n

Post Number: 4144
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Posted on Saturday, May 23, 2009 - 10:16 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Nisarga:




It is 252 - see my posts 4137 and 4140..

Mathematical representation lo formula rayochu - but I am too lazy to do it :-)
aa chal ke tujhe main leke chalu ik aise gagan ke tale
jahan gam bhi na ho, aansoo bhi na ho,bas pyaar hi pyaar pale
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Nisarga
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Username: Nisarga

Post Number: 144
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Posted on Saturday, May 23, 2009 - 10:10 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Liferocks:

Math Puzzle..

How many 5 digit numbers are there in which the digits are in "strictly" descending order; For example 98543; You see all the digits are in strictly descending order. 99876 is not a "strictly" descending order.

This one takes some time to work out the solution. The N digit version and formula (both strictly and not-strictly descending) of this has been asked by a professor to a math PhD aspirantThere are two things that nobody can take away from you; one, your date of birth and two, your self-respect




215 ??

i=1 j=1
Σ Σ j
i=n-1 j=10-i

.... where n is number of digits. Idi correct kadu kaani Ila undochu formula..
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Shadow
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Liferocks:

Math Puzzle..

How many 5 digit numbers are there in which the digits are in "strictly" descending order; For example 98543; You see all the digits are in strictly descending order. 99876 is not a "strictly" descending order.

This one takes some time to work out the solution. The N digit version and formula (both strictly and not-strictly descending) of this has been asked by a professor to a math PhD aspirant




Total 128 numbers.
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Anand_n
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Dlm:

inka 63 vunnayi kadaa..




You missed 65410,65210, 63210
aa chal ke tujhe main leke chalu ik aise gagan ke tale
jahan gam bhi na ho, aansoo bhi na ho,bas pyaar hi pyaar pale
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Dlm
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Dlm:



idi wrong anukunta..

65432
65431
65430
65421
65420
65321
65320
65310
64321
64320
64310
64210


inka 63 vunnayi kadaa..




sorry..meeru correct..nenu confuse ayya.. 10 choosi..4 +1 munduvi add chesaru anukunna..
Chiru is Future
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Dlm
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Anand_n:

Hamayya, inka prasantham ga weekend enjoy cheyochu :-)





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Dlm
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Anand_n:

Starting with 6 = 15 : 10+4+1




idi wrong anukunta..

65432
65431
65430
65421
65420
65321
65320
65310
64321
64320
64310
64210


inka 63 vunnayi kadaa..
Chiru is Future
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Anand_n
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Dlm:




Hamayya, inka prasantham ga weekend enjoy cheyochu :-)
aa chal ke tujhe main leke chalu ik aise gagan ke tale
jahan gam bhi na ho, aansoo bhi na ho,bas pyaar hi pyaar pale
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Dlm
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Anand_n:



Logic correct ...but mee numbers wrong anukunta

Starting with 4 = 1 : 1
Starting with 5 = 5 : 4+1
Starting with 6 = 15 : 10+4+1
Starting with 7 = 35 : 20+10+4+1
Starting with 8 = 70 : 35+20+10+4+1
Starting with 9 = 126 : 56+35+20+10+4+1

Total : 252


starting with





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Dlm
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Dlm:


2275





shoot again wrong..
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Dlm:




Logic correct ...but mee numbers wrong anukunta

Starting with 4 = 1 : 1
Starting with 5 = 5 : 4+1
Starting with 6 = 15 : 10+4+1
Starting with 7 = 35 : 20+10+4+1
Starting with 8 = 70 : 35+20+10+4+1
Starting with 9 = 126 : 56+35+20+10+4+1

Total : 252


starting with
aa chal ke tujhe main leke chalu ik aise gagan ke tale
jahan gam bhi na ho, aansoo bhi na ho,bas pyaar hi pyaar pale
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Dlm
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Liferocks:

Math Puzzle..

How many 5 digit numbers are there in which the digits are in "strictly" descending order; For example 98543; You see all the digits are in strictly descending order. 99876 is not a "strictly" descending order.

This one takes some time to work out the solution. The N digit version and formula (both strictly and not-strictly descending) of this has been asked by a professor to a math PhD aspirant




2275
Chiru is Future
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Dlm
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7
4 * 4 * 4 * 4
256

8

5 * 5 * 5 * 5 = 625

9

6 * 6 * 6 * 6 = 1296

so total: 1296 + 625 + 256 + 98 = 2275

anukuntunna..total....
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Dlm
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Dlm:


last digit 1 vasthundi anukuntunna..




I might be wrong again... as 81 vachi total even ayyindi malli..
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Dlm
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6
5 or 4 or 3
4 or 3 or 2
3 or 2 or 1
2 or 1 or 0

3 * 3 * 3 * 3 = 81

idi 6 tho starting ithe...

ippatiki total 81 + 1 + 16 = 98
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Dlm
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Anand_n:

Ela vachindi naku 252 vastundi :-)




last digit 1 vasthundi anukuntunna..
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Dlm
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Anand_n:

Ela vachindi naku 252 vastundi




hmm edo permutations and combinations formula vaada...adi vachindi


first postion ki 9-4 ravochu

4 tho start ayye chance vunna number okkate 43210
5 tho start ayye chance vunna numbers:

5 4 or 3 3 or 2 2 or 1 1 or 0
so 2 * 2 * 2 * 2 = 16 numbers


migathavi think chesthunna
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Anand_n
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Dlm:

1680?




Ela vachindi naku 252 vastundi :-)
aa chal ke tujhe main leke chalu ik aise gagan ke tale
jahan gam bhi na ho, aansoo bhi na ho,bas pyaar hi pyaar pale
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Dlm
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Dlm:


1680?




No..wrong..
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Dlm
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Liferocks:

Math Puzzle..

How many 5 digit numbers are there in which the digits are in "strictly" descending order; For example 98543; You see all the digits are in strictly descending order. 99876 is not a "strictly" descending order.

This one takes some time to work out the solution. The N digit version and formula (both strictly and not-strictly descending) of this has been asked by a professor to a math PhD aspirant




1680?
Chiru is Future
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Anand_n
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Liferocks:

Math Puzzle..

How many 5 digit numbers are there in which the digits are in "strictly" descending order; For example 98543; You see all the digits are in strictly descending order. 99876 is not a "strictly" descending order.

This one takes some time to work out the solution. The N digit version and formula (both strictly and not-strictly descending) of this has been asked by a professor to a math PhD aspirant




Think I got it ...

Answer : 252

Answer Correct ayite cheppandi - logic cheptanu :-)
aa chal ke tujhe main leke chalu ik aise gagan ke tale
jahan gam bhi na ho, aansoo bhi na ho,bas pyaar hi pyaar pale
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Anand_n
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Liferocks:

There is a math puzzle (scroll below) exclusively for you




Unfair - who said I was good at math ? Logic, problem solving and lateral thinking is more fun :-)
aa chal ke tujhe main leke chalu ik aise gagan ke tale
jahan gam bhi na ho, aansoo bhi na ho,bas pyaar hi pyaar pale
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Liferocks
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Thats correct. There is a math puzzle (scroll below) exclusively for you
There are two things that nobody can take away from you; one, your date of birth and two, your self-respect
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Anand_n
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Liferocks:

Jawaharlal nehru is indira gandhi's father's .......




Name.
aa chal ke tujhe main leke chalu ik aise gagan ke tale
jahan gam bhi na ho, aansoo bhi na ho,bas pyaar hi pyaar pale
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Liferocks
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Yes, if the bucket is as big as pacific ocean then just one bucket.

Dude, you are not giving chance to others.

Ok an easy one (fill in the below blank)

Jawaharlal nehru is indira gandhi's father's .......
There are two things that nobody can take away from you; one, your date of birth and two, your self-respect
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Transcendental
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Liferocks:


In how many buckets can you empty pacific ocean?




(pacific oean lo water yentha/bucket lo water) correct yena
_Trans _
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Liferocks
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Lets leave the Math Puzzle to Anand

Here is one lateral thinking puzzle

In how many buckets can you empty pacific ocean?
There are two things that nobody can take away from you; one, your date of birth and two, your self-respect
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Der_schuler
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Transcendental:

deeniki MATHS probability proof idea ivvaglara




Nenaithe ivvalenu
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Shadow
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Liferocks:




Lets say swtiches are named A, B, C.

1. Turn on A. Wait for a while.

2. Turn off A & Turn on B.

3. Now go inside the room.
- If the bulb is on, its Switch B.
- If the bulb is off, touch the bulb and see if its hot or not.
- If its hot, its Switch A.
- If not, its Switch C.
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Transcendental
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Liferocks:

yes thats correct. Seems like you know this one already ;)


chinnapudu wisdom book lo vachhindi ..
_Trans _
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Liferocks
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Math Puzzle..

How many 5 digit numbers are there in which the digits are in "strictly" descending order; For example 98543; You see all the digits are in strictly descending order. 99876 is not a "strictly" descending order.

This one takes some time to work out the solution. The N digit version and formula (both strictly and not-strictly descending) of this has been asked by a professor to a math PhD aspirant
There are two things that nobody can take away from you; one, your date of birth and two, your self-respect
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Liferocks
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yes thats correct. Seems like you know this one already ;)
There are two things that nobody can take away from you; one, your date of birth and two, your self-respect
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Transcendental
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Liferocks:

There are three switches outside of a closed room. There is one bulb inside the room and only one of these switches is connected to that bulb.

You can go only once inside the room and you will have to tell which switch points to the bulb. How?




depending on the heat
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Transcendental
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Der_schuler:

but it assumes that both people answer in something else but yes or no.



yes ..rule is ..one person ..one question ,,one answer ..deeniki MATHS probability proof idea ivvaglara?
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Liferocks
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One more puzzle...

There are three switches outside of a closed room. There is one bulb inside the room and only one of these switches is connected to that bulb.

You can go only once inside the room and you will have to tell which switch points to the bulb. How?
There are two things that nobody can take away from you; one, your date of birth and two, your self-respect
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Der_schuler
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Transcendental:

explanation --
A road lead to swarrgam B -leads to narakam
truthful person daggariki vellaru - for the above Q ..anthanu next person B road choopistadu antaru(abaddamu chepatdu kabbatti ) .. other road is swargam

abaddam person daggariki vellaru - for the above Q ..anthanu next person B road choopistadu antaru(inhanu abaddamu chepali, athanu nijam cheppali kabatti ) .. other road is swargam




Yes. this is the best solution.....but it assumes that both people answer in something else but yes or no.
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Transcendental
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The answer is
go to any person, ask the question nenu pakkadoditni swargani daari yetu ani adigite athanu ye road choopistadu ?.

vaadu ye road choopistes aa road ki other road is swargam ..

explanation --
A road lead to swarrgam B -leads to narakam
truthful person daggariki vellaru - for the above Q ..anthanu next person B road choopistadu antaru(abaddamu chepatdu kabbatti ) .. other road is swargam

abaddam person daggariki vellaru - for the above Q ..anthanu next person B road choopistadu antaru(inhanu abaddamu chepali, athanu nijam cheppali kabatti ) .. other road is swargam
_Trans _
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Transcendental:

The key to the solution is to engage both the persons to find the answer. So, you ask the first person to get the answer from second. You can derive the correct answer from that response.




if we phrase the questin in such a way tat gate keeper has to answer twice,but still u ask one question....

something like..if i say this road will lead to heaven will you say yes? then if this question si asked to a liar he will have to lie 2 times and one lie cancels the other..
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Der_schuler
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Posted on Friday, May 22, 2009 - 09:59 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Simba:

Your question to first person should be like this pointing to one road.

"Ask the next person if this road leads to heaven?"

If answer from first person is "no", take that road. If answer is "yes", take the other road.




This is a fair solution only when pointing to the road is not implicated as a question with in itself....A signal posing a question....even in this solution U ASK @ QUESTIONS!!!!
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Der_schuler
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Posted on Friday, May 22, 2009 - 09:57 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

again above scenario hold if both of them cal speak more than yes or no. If they can only answer in yes or no..then the answer is different....in that case...

Pick one person and ask:

"Do both of you speak the truth and is this the way to heaven"

By assumptions:

Liar should say : Yes both of us speak the truth and the way he points is not the way so take the other way

True person should say: No and should point in the right way
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Simba
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Username: Simba

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Posted on Friday, May 22, 2009 - 09:52 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Der_schuler:

Since you know only one road leads to heaven, one who is keyed to lie WILL lie and the one keyed to say the truth will show you the right way



Transcendental:


iddari lo okarini okate question adigi swarganiki road kanukkovadam yela ?




You can ask only one question to one person. So, you expect only one answer.

The key to the solution is to engage both the persons to find the answer. So, you ask the first person to get the answer from second. You can derive the correct answer from that response.
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Der_schuler
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Posted on Friday, May 22, 2009 - 09:48 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Transcendental:




U misunderstood me.. I said per the assumptions that "There is one and only one road to heaven",

The question " I can take any of these roads to heaven is a contraposition implicating truth value of both people"

Since you know only one road leads to heaven, one who is keyed to lie WILL lie and the one keyed to say the truth will show you the right way
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Simba
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Posted on Friday, May 22, 2009 - 09:42 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Your question to first person should be like this pointing to one road.

"Ask the next person if this road leads to heaven?"

If answer from first person is "no", take that road. If answer is "yes", take the other road.
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Transcendental
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Username: Transcendental

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Posted on Friday, May 22, 2009 - 09:40 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Der_schuler:

Liar: Has to say yes
Truthful: Has to say No and suggest the right way



Der,we dont know who is liar,who is truthful
_Trans _
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Der_schuler
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Posted on Friday, May 22, 2009 - 09:32 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

just frame your question like this:

" I can walk through any of these doors to heaven"

On the back of stated assimptions:

Liar: Has to say yes
Truthful: Has to say No and suggest the right way
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Film_fan
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Posted on Friday, May 22, 2009 - 09:25 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

bagundhi.....question.....kaani answer theleedhu
"Any one who has never made a mistake has never tried anything new" - Einstein
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Humpty_dumpty
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Username: Humpty_dumpty

Post Number: 1400
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Posted on Friday, May 22, 2009 - 09:21 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Transcendental:


oops I thought I was the gate keeper....
Liberty is too great a virtue to be buried in books
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Transcendental
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Posted on Friday, May 22, 2009 - 09:19 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)


Humpty_dumpty:

Question : Are you dead?

Truth speaker: Yes
Liar : No

Take the first guy to heaven



HD okkallani matrame adagali .okkade answer chayyali//.and swarganiki nuvvu okkadive vellai ..athanni teesukoni vellakodadu ..
_Trans _
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Humpty_dumpty
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Posted on Friday, May 22, 2009 - 09:16 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Question : Are you dead?

Truth speaker: Yes
Liar : No

Take the first guy to heaven
Liberty is too great a virtue to be buried in books
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Transcendental
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Username: Transcendental

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Posted on Friday, May 22, 2009 - 09:09 am:   Insert Quote Edit PostDelete PostPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

come on ..posting some interview puzzles try to answer

rendu roadlu vuntayi A,B .okati swaraganki veltundi okkati narakaniki veltundi ..akkada iddaru vuntaru ..okadu yeppudu nijame cheputadu ..inkokadu yeppudu abaddame cheptadu ..

yevaru nijam cheptare yevaru abddamu cheptare neeku teliyadu ..

iddari lo okarini okate question adigi swarganiki road kanukkovadam yela ?
_Trans _

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