Odd One Out in Numbers

CMAT 2023 · Logical Reasoning · Easy · Odd One Out

Find the odd one among the following :

Answer

$143 = 12^2 - 1$ $168 = 13^2 - 1$ $195 = 14^2 - 1$ $225 = 15^2$ (a perfect square, whereas others are $n^2 - 1$ ). Thus 225 is the odd one out.

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