1000+ Odd Man Out Series Aptitude Questions and Answers - 2

Question: 6

Find out the wrong number in each sequence:
582, 605, 588, 611, 634, 617, 600

(A) 600

(B) 605

(D) 634

Ans: D

Alternately 23 is added and 17 is subtracted from the terms. So, 634 is wrong.

Question: 7

Find out the wrong number in each sequence:
52, 51, 48, 43, 34, 27, 16

(A) 48

(B) 43

(D) 27

Ans: C

Subtract 1, 3, 5, 7, 9, 11 from successive numbers. So 34 is wrong.

Question: 8

Find out the wrong number in each sequence:
4, 9, 19, 39, 79, 160, 319

(A) 39

(B) 79

(D) 319

Ans: C

Double the number and add 1 to it, to get the next number. So, 160 is wrong.

Question: 9

Find out the wrong number in each sequence:
46080, 3840, 384, 48, 24, 2, 1

(A) 384

(B) 24

(D) 1

Ans: B

The terms are successively divided by 12, 10, 8, 6, …. Etc. So, 24 is wrong.

Question: 10

Find out the wrong number in each sequence:
125, 127, 130, 135, 142, 153, 165

(A) 165

(B) 153

(D) 130

Ans: A

Prime numbers 2, 3, 5, 7, 11, 13 are to be added successively. So, 165 is wrong.

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