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How many perfect cubes are there between 100 and 1000 (both exclusive)?

Class 8Perfect CubesCubes and Roots

A4
B5
C6
D7

Step-by-Step Solution

Cubes:

5^{3} = 125, 6^{3} = 216, 7^{3} = 343, 8^{3} = 512, 9^{3} = 729

lie strictly between 100 and 1000.

4^{3} = 64

<100 and

1 0^{3} = 1000

is excluded. So 5 cubes.

Answer: B) 5

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