Question

If 80% of a number is equal to 3/5 of another number, then what is the ratio of two numbers?

1. 5 ∶ 3
2. 3 ∶ 4
3. 5 ∶ 6
4. 3 ∶ 5

Answer 1

Correct Answer - Option 2 : 3 ∶ 4

Given:

80% of a number is equal to 3/5 of another number

Calculation:

Let the numbers be x and y

80% of x = 3/5 of y

⇒ (80/100) × x = (3/5) × y

⇒ x/y = (3/5) × (100/80)

⇒ x/y = 30/40 = 3/4

∴ The ratio of numbers is 3 ∶ 4