medium · GMAT Quantitative Reasoning
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
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