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