Question

Find the odd numbers from the given alternatives.
1. 10, 31
2. 17, 52
3. 9, 28
4. 2, 6

Answer 1

Correct Answer - Option 4 : 2, 6

The logic follows here is:- 

Multiply first number by 3 and add 1, we get second number, except 2,6.

Let's check each option:-

1) 10, 31 = (10 × 3) + 1 = 30 + 1 = 31

2) 17, 52 = (17 × 3) + 1 = 51 + 1 = 52

3) 9, 28 = (9 × 3) + 1 = 27 + 1 = 28

4) 2, 6 = (2 × 3) + 1 = 6 + 1 = 7 ≠ 6

Hence, '2, 6' is odd number among given alternatives.