Question

the cube of 2/5 is 8/125.​

Answer 1

Answer:

Correct option is

A

10

On prime factorisation of the numbers individually, we get,

8=

2×2×2

=2

3

.

125=

5×5×5

=5

3

.

Therefore,

3

8×125

=

3

2

3

×5

3

=2×5=10.

Thus, 10 is the solution.

Answer 2

Answer:

The cube of 2/5 is 8/125; therefore it true.

Step-by-step explanation:

• In context to the given question, we have to proof if the cube of 2/5 is 8/125.​
• to proof:

cube of 2/5 is 8/125.​

Solution:

we know that,

The cube of any number is the thrice multiplication of the same number .

therefore

cube of  2/5  = [2³/5³] = LHS

cube of  2/5  = [ 2x2x2 / 5x5x5]

cube of  2/5  = [ 8 / 125 ] = RHS

LHS = RHS

Hence proved.