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In Choose odd Number questions, certain numbers are given, out of which all except one are alike in some manner while one is different and this number is to be chosen as the answer.

Choose or find odd number

10 , 11 , 15 , 16

Option:
A. 10
B. 11
C. 15
D. 16
Answer: B . 11

Justification: 11 is the only prime number in the group.

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