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Three of the following four are alike in a certain way and so form a group. Which is the one that does not belong to that group?

Question and options

Three of the following four are alike in a certain way and so form a group. Which is the one that does not belong to that group?
  1. 144
  2. 169
  3. 256
  4. 288

Answer and explanation

Correct answer: D - 288
144=122144=12^2, 169=132169=13^2, 256=162256=16^2 are perfect squares; 288 is not.

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  • CUSAT CAT Five-Year LL.B.

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