ghaile8947 ghaile8947

23-06-2018
Mathematics

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A certain project can be completed by 28 men in 90 days. the numbers of men needed varies inversely to the time needed to complete the project. if the contractor wants to complete the project in 72 days, how many men does he have to have working?

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annshiro1989 annshiro1989

23-06-2018

28 men work = 90days
What about 72days = ?
28/90 × 72days = 23 men =23men

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