Question

Which is the following number is a perfect square as well as a perfect cube?
Option are:
64
1000
8
125

Answer 1

Answer:

4^3=64

8^2=64

so, option-a(64)

Answer 2

Answer: 64

Step-by-step explanation:

Perfect square means number obtained by multiplying a number by itself.

*Last digit of a perfect square can only be 1, 4, 5, 7, 9 or 0.

So, with this logic we can rule out the option 8.

*If unit digit ends in 5, ten’s digit is always 2.

So, we can also eliminate option 125

*If odd number of zeroes are available in a number, then it is not a perfect square.

So, 1000 also won't come.

Hence, 64 is the correct answer.

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