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djverab [1.8K]
3 years ago
12

A tank can be filled by one pump in 50 minutes and by another pump in 60 minutes. A third pump can drain the tank in 75 minutes.

If all 3 pumps go into operation, how long will it take to fill the tank? help pls
Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
3 0
It sure take a hours to pump in the tank
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