Question

When a number is divided by 25, its cube root is x. When it is multiplied with 5, then its cube root is y If x + y = 36, then the number is​

Answer 1

Answer:

a=5

Explanation:

Let the number be n

Then

According to question

25/n = Cube root of x

Thus

x = (25/n)^3

x = 15625 / n^3 Eqn1

And Similarly

n * 5 = Cube Root of y

Thus

125 n^3 = y

Now we are given that

x + y = 36

Thus

15625 / n^3 + 125 n^3 = 36

15625 + 125 n^6 = 36 n^3

n = 5400

thus

a = 5400 - 5395

a = 5