Question

50% of 30 is 15% of what number?
- a. 1
- b. 10
- c. 15
- d. 50

Answer 1

To find 15% of a number, we can convert 15% to a decimal by dividing it by 100. So, 15% is equal to 0.15. We are given that 50% of 30 is equal to 15% of a number. Solving this equation gives us x = 100, so 15% of 100 is 15.

Step-by-step explanation:

To find 15% of a number, we can convert 15% to a decimal by dividing it by 100. So, 15% is equal to 0.15.

We are given that 50% of 30 is equal to 15% of a number. In mathematical terms, we can write this as: 0.5 * 30 = 0.15 * x

Simplifying the equation, we have: 15 = 0.15x

To solve for x, we divide both sides of the equation by 0.15, giving us x = 100.

Therefore, 15% of 100 is 15, so the answer is 15.