SSC CHSL 2021 PYQ — Question 77

SSC CHSL - 15 April 2021 - Shift 1 • Reasoning • Q77

Select the number set in which the numbers are related in the same way as are the numbers of the following set.

(19, 53, 215)

Show answer & explanation

Correct answer: A

Explanation

The correct answer is Option 1 i.e. (13, 35, 143).

Understanding

The logic used here is:

(19, 53, 215)

19 × 3 = 57 - 4 = 53

53 × 4 = 212 + 3 = 215

Similarly;

Option 1: (13, 35, 143)

13 × 3 = 39 - 4 = 35

35 × 4 = 140 + 3 = 143

This follows the same logic. So, we should not check the further options.

Hence, Option 1 is the correct answer.