Which among the following is different from others?
222,231,402, 505

A number is divisible by 3 if the sum of its digits is a multiple of 3.
222 → 2 + 2 +2 = 6 → Divisible by 3
231 → 2 + 3 + 1 = 6 → Divisible by 3
402 → 4 + 0 + 2 = 6 → Divisible by 3
505 → 5 + 0 + 5 = 10 → Not divisible by 3
Find the Odd One Out
222, 231, and 402 are divisible by 3.
505 is NOT divisible by 3.
Correct answer: D) 505.​​