(a) Multiplied so that the product is a perfect cube.
243 = 3 × 3 × 3 × 3 × 3
= 33 × 32
Hence, to make it a perfect cube we should multiply it by 3.
(b) Divided so that the quotient is a perfect cube.
243 = 3 × 3 × 3 × 3 × 3
= 33 × 32
Hence, to make it a perfect cube we have to divide it by 9.
