SOLUTION: Lucy can paint a wall in 5 hours and working with Pedro the two of them can paint the fence in 2 hours. Exactly how long would it have taken Pedro to paint the fence alone?

Question 1064602: Lucy can paint a wall in 5 hours and working with Pedro the two of them can paint the fence in 2 hours. Exactly how long would it have taken Pedro to paint the fence alone?
Answer by ikleyn(52786) (Show Source): You can put this solution on YOUR website!
.

Working together, they paint  of the area in one hour.

Working alone, Lucy paints  of the area in one hour.

Hence, Pedro paints  =  =  of the area per hour.

It means that Pedro takes  hours to paint the room working alone.

 hours =   hours = 3 hours and 20 minutes.


It is your answer.

For a wide variety of similar solved joint-work problems with detailed explanations see the lessons
    - Using Fractions to solve word problems on joint work,
    - Solving more complicated word problems on joint work,
    - Selected joint-work word problems from the archive
in this site.

Read them and get be trained in solving joint-work problems.

Also, you have this free of charge online textbook in ALGEBRA-I in this site
    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this textbook under the topic "Rate of work and joint work problems" of the section "Word problems".

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