easy · GMAT Quant
Train A and Train B start 600 miles apart and travel toward each other on parallel tracks. Train A travels at a constant speed of 50 mph and Train B travels at a constant speed of 70 mph.
How many hours will it take for the two trains to meet?
- 10 hours
- 30 hours
- 5 hours
- 6 hours
- 12 hours
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