1
Answer: DSet 1: Ratios Rates Proportions (Advanced)
Explanation
PROBLEM
A mixture is made of two substances in the ratio 5:6. If the total mixture is 33 liters, how many liters is the first substance?
A mixture is made of two substances in the ratio 5:6. If the total mixture is 33 liters, how many liters is the first substance?
A.
30
B.
7
C.
18
D.✓ Correct
15
Detailed Explanation
Choice D is the best answer. First substance = 5/(5+6) times 33 = 5/11 times 33 = 15 liters
Why others are wrong:
A: 30 is incorrect because it does not satisfy the equation.
B: 7 is incorrect because it does not satisfy the equation.
C: 18 is incorrect because it does not satisfy the equation.