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Category / Search: Aptitude : Square and Cube Roots

(Q) Cube root of 729 then square it ?

A) 256
B) 81
C) 49
D) 144

View Answer B) 81

Explanation :
729 = 9 x 9 x 9
=> Cube root of 729 = 9
Now, required square of 9 = 9 x 9 = 81.
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