Set 3: Ratios Rates Proportions (Intermediate)

**Choice A is the best answer.** Cross multiply: 9x = 3 times 36 = 108. x = 12

Explanation

Answer: A

PROBLEM

Solve: 9/3 = 36/x. Find x.

✓ Correct

Detailed Explanation

Choice A is the best answer. Cross multiply: 9x = 3 times 36 = 108. x = 12

Why others are wrong:

B: 14 is incorrect because it does not satisfy the equation.

C: 15 is incorrect because it does not satisfy the equation.

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