100+ Odd Man Out Questions for Bank Exams - 1

Question: 1

Find out the number which is odd in the sequence:
2, 3, 5, 8, 12, 17, 25, 30

(A) 8

(B) 12

(C) 17

(D) 23

Ans: D

The series is +1, +2, +3, +5, +6, +7.

Therefore, 17 + 6 = 23

Therefore 25 is wrong.

Question: 2

Find out the number which is odd in the sequence:
4, 16, 25, 36, 64, 144

(A) 16

(B) 25

(C) 36

(D) 64

Ans: B

All numbers except 25 are perfect squares of even numbers.

Question: 3

Find out the number which is odd in the sequence:
8, 27, 125, 212, 343

(A) 8

(B) 27

(C) 125

(D) 212

Ans: D

Except 212, all numbers are cubes of prime numbers.

Question: 4

Find out the number which is odd in the sequence:
8, 27, 64, 125, 216

(A) 27

(B) 64

(C) 125

(D) 216

Ans: B

All numbers in the sequence are perfect cubes except 64 which is both perfect square and cube.

Question: 5

Find out the number which is odd in the sequence:
17, 35, 43, 53, 62, 80

(A) 35

(B) 43

(C) 53

(D) 62

Ans: B

All number except 43 are having digit sum equal to 8.

i.e. 3 + 5 = 5 + 3 = 6 + 2 = 8.

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