Set 1: Ratios Rates Proportions (Beginner)

**Choice B is the best answer.** Cross multiply: 6x = 5 times 18 = 90. x = 15

Explanation

Answer: B

PROBLEM

Solve: 6/5 = 18/x. Find x.

✓ Correct

Detailed Explanation

Choice B is the best answer. Cross multiply: 6x = 5 times 18 = 90. x = 15

Why others are wrong:

A: 13 is incorrect because it does not satisfy the equation.

C: 16 is incorrect because it does not satisfy the equation.

D: 12 is incorrect because it does not satisfy the equation.