Question

Three of the following four numbers are alike in a certain way and one is different. Pick the number that is different from the rest.
1. 853
2. 327
3. 645
4. 761
5. None

Answer 1

Correct Answer - Option 3 : 645

Taking the sum of digits of each option:

⇒ 853 → 8 + 5 + 3 = 16 (even)

⇒ 327 → 3 + 2 + 7 = 12 (even)

⇒ 645 → 6 + 4 + 5 = 15 (odd)

⇒ 761 → 7 + 6 + 1 = 14 (even)

Hence, ‘645’ is the odd number.