SSC GD 2019 PYQ — Question 77

SSC GD Constable (English) - 13 Feb 2019 Shift 1 • Reasoning • Q77

Choose the odd number out of the given options.

Show answer & explanation

Correct answer: B

Explanation

The correct answer is option 2 i.e. 561.

Understanding Application

The logic used here is:

109, 127 and 307 are prime numbers.

Similarly,

561 is not a prime number.

Hence, option 2 is the odd one out.