Mathematics, 28.05.2020 10:57 shaylawaldo11
A swimming pool holds 540,000 liters of water. The pool has two drain pipes. When the pool is completely full, the first pipe alone can empty it in 180 minutes, and the second pipe alone can empty it in 120 minutes. When both are draining together, how long does it take to empty the pool?
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A swimming pool holds 540,000 liters of water. The pool has two drain pipes. When the pool is comple...
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