medium · GMAT Quant
A tank holds 40 liters of a solution that is 30% acid by volume. A technician plans to add pure water (0% acid) until the solution is 20% acid.
How many liters of water must be added?
- 10
- 15
- 20
- 24
- 30
Sign up free to see the explanation and track your rank →
More GMAT Quant practice
- Including both endpoints, how many distinct integer price points are in this range?
- Which of the following expressions must result in a positive value?
- Which property of arithmetic justifies that first step?
- Which of the following must also be an even integer?
- Which of the following inequalities correctly represents this range?
- Which of the following includes the number 0?
- How many unique meal combinations can a customer create?
- What is the probability that the lightbulb is functional?