Discussion Forum



1)

Find the odd man out. 3, 8, 18, 38, 78, 158, 316


A) 8

B) 78

C) 158

D) 316

Answer:

Option D

Explanation:

3

3 × 2 + 2 = 8

8 × 2 + 2 = 18

18 × 2 + 2 = 38

38 × 2 + 2 = 78

78 × 2 + 2 = 158

158 × 2 + 2 = 318

Hence, 316 is wrong and 318 should have come in place of that