A number is selected at random from 1 to 100.Find the propability that it is a perfect cube.
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Step-by-step explanation:
Total Numbers =1,2...100
=100
Perfect Squares
=1
2
,2
2
,3
2
...10
2
=1,4,9...100
=10 numbers
∴ Pralal =
100
10
=
10
1
Perfect Cube =1
3
,2
3
,3
3
...
=1,8,27,64
=4
∴ P (Not Perfect cube) =1−
100
4
=24/25
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