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0 votes
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in Squares And Square Roots by (30.8k points)
closed by

Which of the following numbers is not a perfect square?

A. 7056 

B. 3969 

C. 5478 

D. 4624

1 Answer

+1 vote
by (31.2k points)
selected by
 
Best answer

We know that, 

As per the properties of square, 

All the numbers that end with digits 2, 3, 7 or 8 are not a perfect square 

Hence, 

Considering the property, we get 

The number 5478 is not a perfect square 

As the last digit of the number is 8. 

Therefore, 

Option (C) is the correct option

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