Mathematics, 15.02.2021 09:10 Jofish5815

If 30 men can do piece of work in 11 days working 9 hours daily, how many hours a day 55 men have to work in order to finish another piece of work thrice as great in 18 days?

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If 30 men can do piece of work in 11 days working 9 hours daily, how many hours a day 55 men have to...

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