SOLUTION: There are 4 men making a house. One guy can make it in 2 days , another guy in 10 days, another in 40 days , another in 20 days. How long will it take them to finish if they work t
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Question 820993: There are 4 men making a house. One guy can make it in 2 days , another guy in 10 days, another in 40 days , another in 20 days. How long will it take them to finish if they work together.
Found 2 solutions by josgarithmetic, moemoe:
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
The rates are additive. Think of the rate of work as "job per day" and find the combined rate of all the men.
Their rate in houses per day is
Answer by moemoe(2) (Show Source): You can put this solution on YOUR website!
4
-
72
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