SOLUTION: If 9 painters can paint a house in 5 hours, how many painters are needed to do the same job in only 3 hours?

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Question 967944: If 9 painters can paint a house in 5 hours, how many painters are needed to do the same job in only 3 hours?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+9+ painters can paint +1+ house in +5+ hrs
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+1%2F9+ that number of painters will take +9+ times
as long to paint +1+ house, so
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+1+ painter can paint +1+ house in +45+ hrs
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It will take +15+ times as many painters to paint +1+ house
in +1%2F15+ of that time, so
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+15+ painters can paint +1+ house is +3+ hrs