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Direction: In each of the following questions, four/five options are given. Out of these, there/four are alike in a particular way but remaining one is different. Find the odd one from the given options which is different from others.

  1. NA
    1. 272
    2. 210
    3. 240
    4. 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 numbers except 240 is a prime number, whereas sum of digits of the number 240 is a non-prime. Hence, it is different from all others.



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