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Mathematics, 03.12.2019 07:31 lucinda90
The water from one outlet, flowing at a constant rate, can fill a swimming pool in 9 hours. the water from a second outlet, flowing at a constant rate, can fill the same pool in 5 hours. if both outlets are used at the same time, approximately what is the number of hours required to fill the pool?
(a) 0.22
(b) 0.31
(c) 2.50
(d) 3.21
(e) 4.56
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The water from one outlet, flowing at a constant rate, can fill a swimming pool in 9 hours. the wate...
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