Question

Four pairs of number have been given, out of which three are alike in some manner, while one is different. Choose out the odd one.
1. 23 - 18
2. 30 - 20
3. 62 - 8
4. 21 - 9

Answer 1

Correct Answer - Option 1 : 23 - 18

The pattern followed here is:

The addition is two numbers is a multiple of 10.

Option 1 → 23 - 18 → 23 + 18 = 41, Not divisible by 10.

Option 2 → 30 - 20 → 30 + 20 = 50 → 10 × 5 = 50

Option 3 → 62 - 8 → 62 + 8 = 70 → 10 × 7 = 70

Option 4 → 21 - 9 → 21 + 9 = 30 → 10 × 3 = 30

All except, '23 - 18' follow the same pattern.

Hence, '23 - 18' is different from others.