medium · GMAT Quant
A boat travels 36 km downstream in 3 hours. The return trip upstream over the same 36 km takes 4.5 hours.
What is the speed of the current?
- 4 km/h
- 2 km/h
- 10 km/h
- 20 km/h
- 1.5 km/h
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?
- Including both endpoints, how many distinct integer price points are in this range?
- What is the probability that the lightbulb is functional?