Exercise :: Odd Man Out and Series  Pick Wrong No.
 Odd Man Out and Series  Odd Man Out
 Odd Man Out and Series  Pick Wrong No.
 Odd Man Out and Series  Missing No.
 Odd Man Out and Series  Find Wrong No.
Find out the wrong number in the given sequence of numbers.
1.  582, 605, 588, 611, 634, 617, 600 

Answer: Option A Explanation: Alternatively 23 is added and 17 is subtracted from the terms. So, 634 is wrong.

2.  22, 33, 66, 99, 121, 279, 594 

Answer: Option C Explanation:
Each of the number except 279 is a multiple of 11.

3.  8, 13, 21, 32, 47, 63, 83 

Answer: Option A Explanation: Go on adding 5, 8, 11, 14, 17, 20. So, the number 47 is wrong and must be replaced by 46. 
4.  1, 8, 27, 64, 124, 216, 343 

Answer: Option D Explanation:
The numbers are 1^{3}, 2^{3}, 3^{3}, 4^{3} etc. So, 124 is wrong; it must have been 5^{3} i.e., 125.

5.  1, 2, 6, 15, 31, 56, 91 

Answer: Option B Explanation: 1, 1 + 1^{2} = 2, 2 + 2^{2} = 6, 6 + 3^{2} = 15, 15 + 4^{2} = 31, 31 + 5^{2} = 56, 56 + 6^{2} = 92 Last number of given series must be 92 not 91. 