DRDO Multi tasking staff Model paper 7

1) 243 ⇒ 2 + 4 + 3 = 9
2) 264 ⇒ 2 + 6 + 4 = 12
3) 333 ⇒ 3 + 3 + 3 = 9
4) 405 ⇒ 4 + 0 + 5 = 9
→ Except “264”, sum of digits of number is 9.
Therefore, “264” is odd one among given alternatives.