SSC CGL 2020 PYQ — Question 99

SSC CGL - 9th March 2020 Shift 1 • Reasoning • Q99

Identify the number that does NOT belong to the following series.

2, 6, 14, 30, 62, 126, 250

Show answer & explanation

Correct answer: D

Explanation

The correct answer option 4 i.e 250.

Understanding

Given series: 2, 6, 14, 30, 62, 126, 250

The logic used here is:

2 + 4 = 6

6 + 8 = 14

14 + 16 = 30

30 + 32 = 62

62 + 64 = 126

126 + 128 = 254

The odd term in the series is 254.

Hence, option 4 is the correct answer.