If 20% of 20% of y; If 20, then the value of y is

Correct option is D

Given:

- 20% of 20% of y = 20

- Options:

A. 80, B. 100, C. 400, D. 500

Formula Used:

Percentage formula:

Value = $$\frac{\text{Percentage}}{100} \times \text{Number}$$​

To calculate 20% of 20% of y :

Value = $$\frac{20}{100} \times \frac{20}{100} \times y$$​

Solution:

1. Substitute the given value into the formula:

$$\frac{20}{100} \times \frac{20}{100} \times y = 20$$​

2. Simplify the left-hand side:

$$\frac{20 \times 20}{100 \times 100} \times y = 20$$​

$$\frac{400}{10000} \times y = 20$$​

$$\frac{y}{25} = 20$$​

3. Solve for y :

y = 20 $$\times$$​ 25

y = 500