medium · GMAT Quant
A swimming pool is equipped with an inlet pipe that can fill it in 4 hours and a drain pipe that can empty it in 12 hours, and both pipes are opened simultaneously while the pool is empty.
How long will it take to fill the pool to 75% of its capacity?
- 4.5 hours
- 3 hours
- 8 hours
- 5.5 hours
- 6 hours
Sign up free to see the explanation and track your rank →
More GMAT Quant practice
- Which of the following values is the largest?
- Which property of arithmetic justifies that first step?
- How many unique meal combinations can a customer create?
- What is the final price of the jacket?
- What is the actual distance between them?
- Which of the following must also be an even integer?
- What is the speed of the current?
- Including both endpoints, how many distinct integer price points are in this range?