Set 1: Ratios Rates Proportions (Advanced)

**Choice B is the best answer.** First substance = 6/(6+3) times 27 = 6/9 times 27 = 18 liters

Explanation

Answer: B

PROBLEM

A mixture is made of two substances in the ratio 6:3. If the total mixture is 27 liters, how many liters is the first substance?

✓ Correct

Detailed Explanation

Choice B is the best answer. First substance = 6/(6+3) times 27 = 6/9 times 27 = 18 liters

Why others are wrong:

A: 20 is incorrect because it does not satisfy the equation.

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

D: 36 is incorrect because it does not satisfy the equation.