Q. 6
Which of the following cannot be the unit digit of a perfect square number?
A. 6
B. 1
C. 9
D. 8
Answer :
We know that,
As per the properties of square,
A number which is a perfect square cannot have 2, 3, 7 or 8 as their unit digit.
Hence,
Considering the property, we get
That 8 cannot be the unit digit of a perfect square number
Therefore,
Option (D) is the correct option.
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