Set 2: Ratios Rates Proportions (Intermediate)

[Variation 1] **Choice D is the best answer.** Cross multiply: 6x = 5 times 18 = 90. x = 15

Explanation

Answer: D

PROBLEM

Recent studies show that solve: 6/5 = 18/x. Find x.

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

✓ Correct

Detailed Explanation

[Variation 1] Choice D 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.

B: 18 is incorrect because it does not satisfy the equation.

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