Question 13

DIRECTIONS for the question: In the following question, five numbers are given. Out of these, four are alike in a certain way but one of them is different. Choose the one which is different from the rest four.

(1) 51
(2) 144
(3) 64
(4) 121
(5) 256

Solution

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All of 144, 64, 121 and 256 are perfect squares.
thus, the odd one out is 51.

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