SOLUTION: alemitu can paint a house in 4 hours,alemu can paint the same house in 2 hours,how long will it take to paint the house,if they work together?

Question 1045926: alemitu can paint a house in 4 hours,alemu can paint the same house in 2 hours,how long will it take to paint the house,if they work together?
Found 2 solutions by KMST, ikleyn:
Answer by KMST(5328)   (Show Source): You can put this solution on YOUR website!
Each hour,
alemitu can paint a house,
and alemu can paint of the same house.
Working to gether, per hour they would paint
of the same house.
So, working, to paint the whole house, it would take them
.
Answer by ikleyn(52798)   (Show Source): You can put this solution on YOUR website!
.
For many other solved problems on joint work see the lessons
    - Using Fractions to solve word problems on joint work,
    - Solving more complicated word problems on joint work,
    - Using quadratic equations to solve word problems on joint work,
    - Solving rate of work problem by reducing to a system of linear equations,
    - Selected joint-work word problems from the archive
    - Joint-work problems for 3 participants.
in this site.

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