Question

The smallest number by which 5400 must be multiplied so that it becomes a perfect cube:

• A. 2
• B. 10
• C. 5
• D. 3

Answer 1

The correct option is C 5

$5400=2\times 2\times 2\times 3\times 3\times 3\times 5\times 5=2^3\times 3^3\times 5^2$
We should multiply 5400 with 5 to get a perfect cube.