SOLUTION: sally can paint a house in 4 hours john can paint the same house in 6 hours how long would it take both to paint the house together?

Question 643992: sally can paint a house in 4 hours
john can paint the same house in 6 hours
how long would it take both to paint the house together?
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!
If Sally can paint a house in hours, then she can paint of a house in hour.
If John can paint a house in hours, then he can paint of a house in hour.
Let be the number of hours it would take them to paint the house.
Working together, they can paint of the house in hour, so

Multiply by LCD, so

hours. Also, % of minutes is minutes.
Final answer = hours and minutes.

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