Question

$\sqrt[3]{125 \times 64}$
​

Answer 1

Correct option is

A

20

On prime factorising, we get,

125=5×5×5 =5

3

64=2×2×2×2×2×2=4×4×4 =4

3

.

Then,

3

125×64

=

3

5

3

×4

3

=5×4=20.

Therefore, 20 is the solution.

Answer 2

Answer:

$\sqrt[3]{125\times64} \\ \\ \sqrt[3]{5 \times 5 \times 5 \times 4 \times 4 \times 4} \\ \\ 20$