Set 5: Ratios Rates Proportions (Intermediate)

**Choice B is the best answer.** Cross multiply: 3x = 2 times 15 = 30. x = 10

Explanation

Answer: B

PROBLEM

Solve: 3/2 = 15/x. Find x.

✓ Correct

Detailed Explanation

Choice B is the best answer. Cross multiply: 3x = 2 times 15 = 30. x = 10

Why others are wrong:

A: 9 is incorrect because it does not satisfy the equation.

C: 7 is incorrect because it does not satisfy the equation.

D: 11 is incorrect because it does not satisfy the equation.