One pump can empty a pool in 4 days, whereas a second pump can...

One pump can drain the pool in 11 minutes. When a second pump is used, it only takes 9 minutes. How...

One pump can empty a pool in 5 days, whereas a second pump can empty the pool in 7 days. How long wi...

Pump A alone can empty the city pool in 12 hours. If only pump B is used, it takes 24 hours to empty...

A pump fills a pool at a rate of 20 cubic meters per hour. If each cubic meter of water is valued at...

a pump fills an empty pool at a rate of 60 cubic decimeters per second. if one leter is equivalent t...

if pump A can empty a tank in 2 hours and pump B can empty the tank in 4 hours ,how long will they t...

A pump fills a pool at a constant rate. At the end of 44 minutes it has filled 11 gallon of water. W...

A pump fills a pool at a constant rate. At the end of 4 minutes it has filled 1 gallon of water. Whi...

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