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Only one of the numbers below is a perfect cube. Pick it.

Class 8Perfect CubesCubes and Roots

A81
B150
C125
D225

Step-by-Step Solution

125 =

5 \times 5 \times 5 = 5^{3} .81 = 3^{4}

and

225 = 1 5^{2}

are not cubes, and

150 = 2 \times 3 \times 5^{2}

is not a cube either.

Answer: C) 125

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