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Choose the number that does NOT belong with the others: 16, 25, 36, 43.

Competition practiceAnalogy & Classification

A36
B25
C43
D16

Step-by-Step Solution

16 =

4^{2}, 25 = 5^{2}

and

36 = 6^{2}

are perfect squares, but 43 is not a perfect square. So 43 is the odd one out.

Answer: C) 43

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