Pick the number equal to a whole number times itself.
A49
B50
C48
D51
Answer & Solution
Correct answer: A. 49
1. 49 = 7 x 7.
2. 48, 50 and 51 are not the product of a whole number with itself.
3. So 49 is a perfect square.
_Source: Wikipedia, Square number (CC BY-SA 4.0), Square number_
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