Question Bank - General Aptitude

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Out of the given options, three are alike in a certain way. However, one option is not like the other three. Select the option that is different from the rest.

A.
143
B.
197
C.
151
D.
137

Solution:

The logic followed is:Option (1): 143 ? NOT a prime number.Option (2): 197 ? a Prime number.Option (3): 151 ? a Prime number.Option (4): 131 ? a Prime number.Here, Option (1) is different than the others.Hence, Option (1) is correct.Additional InformationPrime Numbers: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199 ...

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