medium · GMAT Quant
Two automated pumps in a water treatment facility cycle on periodically. Pump X activates every 15 minutes, and Pump Y activates every 20 minutes. Both pumps activate simultaneously at 8:00 AM.
How many times will both pumps activate simultaneously between 8:00 AM and 1:00 PM inclusive on the same day?
- 2
- 5
- 6
- 4
- 7
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