SSC CGL 2021 PYQ — Question 89

SSC CGL - 20 Aug 2021 - Shift 1 • Reasoning • Q89

Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number pair that is different.

Show answer & explanation

Correct answer: B

Explanation

The correct answer is option 2 i.e. (547, 258).

The logic used here is:

Square of the sum of the numbers of the first number = 2nd number

Option 1: (812, 121)

812 = 8 + 1 + 2 = 112 = 121

Option 2: (547, 258)

547 = 5 + 4 + 7 = 162 = 256

This does not follow the logic.

Hence, option 2 is the odd one out.