Mathematics, 12.08.2021 14:00 jazzhands16
A day? 6. If 18 pumps can raise 2150 tonnes of water in 50 days, working 8 hours a day, how much water will be raised in 60 days by 16 out of which 10 are working 9 hours a day and the rest 7 hours a day?
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A day? 6. If 18 pumps can raise 2150 tonnes of water in 50 days, working 8 hours a day, how much wat...
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