SSC CGL 2010 Tier 1 Question Paper - Shift 1

Question 113

By what least number should 675 be multiplied so as to obtain a perfect cube number ?

Solution

Factorising 675 we get
675 = 5 $$\times$$ 5 $$\times$$ 3 $$\times$$ 3 $$\times$$ 3 
There in order to make 675 a perfect cube, it has to be multiplied by 5.

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