SSC CPO 2019 PYQ — Question 158

SSC CPO Tier I - 13th December 2019 - Shift 2 • Reasoning • Q158

In the given series one number is incorrect. Identify the INCORRECT number from among the options given.
3, 5, 7, 6, 10, 14, 12, 24, 28, 24, 40, 56

Show answer & explanation

Correct answer: B

Explanation

The correct answer is Option 2, i.e. 24.

Understanding

Given series is 3, 5, 7, 6, 10, 14, 12, 24, 28, 24, 40, 56.

(3, 5, 7) (6, 10, 14) (12, 24, 28) (24, 40, 56)

(3, 5, 7) x 2 = (6, 10, 14)

(6, 10, 14) x 2 = (12, 24, 28)

In third pair, 24 is incorrect number. The correct number is 20.

Hence, the correct answer is option 2.