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if 8 men can build a house in 90 days, in how many days can 20 men working under the same rate build the house?

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if 8 men can build a house in 90 days, in how many days can 20 men working under the same rate build the house?​

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if 8 men can build a house in 90 days, in how many days can 20 men working under the same rate build the house?