medium · GMAT Quant
A production facility uses two printing presses, Machine A and Machine B, to complete a specific job. Machine A, operating alone at its constant rate, completes the job in 4 hours. Machine B, operating alone at its constant rate, completes the job in 6 hours.
If both machines operate simultaneously at their respective constant rates, how many hours does it take to complete (2)/(3) of the job?
- 1.3
- 1.6
- 3.3
- 2.4
- 5.0
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?