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Three of these numbers share a property and one does not. Which is the odd one? 36, 49, 64, 80

Competition practiceAnalogy & Classification

A36
B49
C80
D64

Step-by-Step Solution

36 =

6^{2}, 49 = 7^{2}

and

64 = 8^{2}

are perfect squares; 80 is not, so 80 is the odd one.

Answer: C) 80

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