Mathematics · Time and Work
Four pipes A, B, C, and D can fill an empty tank in 12, 15, 20, and 30 hours respectively. Pipe A alone is opened for 3 hours, then pipe B is opened along with A for 2 hours, then pipe C is also opened with them for 1 hour, and finally, all four pipes are opened together until the tank is full. Find the total time taken to completely fill the tank.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 17815 hours
- 27114 hours✓
- 3712 hours
- 47 hours
Correct answer
7114 hours
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