SSC CGL Tier II 21 Sep 2014 Paper

Question : 53 of 100

Marks: +1, -0

What is the smallest number by which 625 must be divided so that the quotient is a perfect cube ?

Solution:

(2)

∴ 625 = 5 × 5 × 5 × 5 = 5^3 × 5

For the smallest cube number,
625 should be divided 5,

625 ÷ 5=125=5^{3}

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