64, 54, 42, 31, 20 find the odd man out?

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sruesh

  • May 27th, 2005
 

31

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raj

  • Aug 23rd, 2005
 

54

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rakhel parida

  • Sep 27th, 2005
 

31 ,b'coz rest all r odd numbers

Danny John

  • Jan 27th, 2006
 

31 because that is the only prime number

vanivenukoti

  • Jan 31st, 2006
 

31,it is a prime number.

 

Paul M

  • Feb 1st, 2006
 

You are right, however; for the wrong reason. See the pattern like so...6 -- 5 -- 4 -- 3 -- 2 -- (cont) 1 ****** Decrement --14 -- 4 -- 2 --(2) -- 0 -- (cont) 0 ****** Decrement --2 every other one.31 is out since it is supposed to be 32. Intel Inc. is big on patterns.Regards,Paul

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Swaroop kumar dey

  • Apr 27th, 2006
 

54, because

64-11 = 53

53-11 = 42

42-11 = 31

31-11 = 20

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Ehab Ababneh

  • Apr 28th, 2006
 

Hi there!!!.31: is odd.31: is prime.20: is equal to 20 (itself) when rounded up.64: is a power of 2 (2^6).64: 8*8 is 64.64: 4*4*4 is 64.54: see the pattern in the second digit: 2->3->4->5->6 and 54 breaks the sequence in the pattern in for the first digit: 0->1->2->4->454: is composed of an odd digit (5) and an even digit (4). The others are composed of either even digits or 2 odd digits.42: is the only number that is composed of a digit and its square 2 and (2^2=4).anyone else has any ideas?....

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aswin

  • Jun 19th, 2006
 

54

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MuthuRajan

  • Jun 21st, 2006
 

31 Bcoz its Odd No

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jyotsna saroha

  • Oct 9th, 2006
 

31

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nitu agrawal

  • Dec 31st, 2006
 

54because..........64-->6+4=10;54--->5+4=9;42--->4+2=6;31--->3+1=4;20--->2+0=2.so the series is even number from 2 to 10..hence instead of 54 we should have 53........53--->5+3=8

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vamsisaikrishna

  • Jan 31st, 2007
 

hey in my opinion most of ur answers are correct, the logic behind this is not correct"asin each n every number a difference of 2 for each digit, SO THE ANSWER 54 becoz this is not any sequencing problem and we have to think on individual number.HOPE my logic is clear.. Thanx

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pavankumartn

  • Apr 26th, 2007
 

Hi there!!!.31: is odd.31: is prime.20: is equal to 20 (itself) when rounded up.64: is a power of 2 (2^6).64: 8*8 is 64.64: 4*4*4 is 64.54: see the pattern in the second digit: 2->3->4->5->6 and 54 breaks the sequence in the pattern in for the first digit: 0->1->2->4->454: is composed of an odd digit (5) and an even digit (4). The others are composed of either even digits or 2 odd digits.42: is the only number that is composed of a digit and its square 2 and (2^2=4).anyone else has any ideas?

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hoooix

  • Dec 10th, 2008
 

answer is 54, simple patern,
6-4=2
5-4=1
4-2=2
3-1=2
2-0=2

another logic, bit similar wit sm1 answer b4,
6x,5x,4x,3x,2x : x4,x4(should be x3),x2,x1,x0

so both reason show that 54 is odd.

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sowmiya

  • Sep 6th, 2011
 

31

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