SOLUTION: Manuel can build a house in 45 days. With Errol’s help they can build the house in 30 days. How long would it take Errol to build the same house by himself?

Question 1133629: Manuel can build a house in 45 days. With Errol’s help they can build the house in 30 days. How long
would it take Errol to build the same house by himself?

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Manuel can build a house in 45 days. With Errol’s help they can build the house in 30 days. How long would it take Errol to build the same house by himself?
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To do this type of problem, invert and use "house per day" instead of days per house.
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