Find the smallest number by which 180 must be multiplied so that the r – InterviewSolution

1.

Find the smallest number by which 180 must be multiplied so that the resultant number becomes a perfect square

Answer»

180=2×2× 3× 3×5

so if we MULTIPLY it by 5 ,then it will be a perfect square.

New NUMBER =2×2× 3× 3×5×5=900

square ROOT of 900= √(900)= 30.

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