Direction: In each of the following questions, five/four number are given. Out of these four/three are like in a certain way but one is different. Choose the one which is different from the rest four/three.
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NA
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- 272
- 210
- 240
- 304
Correct Option: C
∵ 272 = 2 + 7 + 2 = 11
210 = 2 + 1 + 0 = 3
240 = 2 + 4 + 0 = 6
304 = 3 + 0 + 4 = 7
The sum of digit of all number except 240 is a prime number where as sum of number 240 digit is a non-prime. Hence, it is different from all others.
