SOLUTION: A man can paint a room in 8 hours. It takes his son 12 hours to do the same job. After working by himself for 2 hours, his son joined him and together they finished the job. How lo

Algebra ->  Rate-of-work-word-problems -> SOLUTION: A man can paint a room in 8 hours. It takes his son 12 hours to do the same job. After working by himself for 2 hours, his son joined him and together they finished the job. How lo      Log On


   

Question 893049: A man can paint a room in 8 hours. It takes his son 12 hours to do the same job. After working by himself for 2 hours, his son joined him and together they finished the job. How long did the son work?
Answer by josgarithmetic(39615) About Me  (Show Source):
You can put this solution on YOUR website!
Uniform work rates are this way: RT=J rate time job

The job is made with these parts:
highlight_green%28%281%2F8%29%2A2%2B%281%2F8%2B1%2F12%29t=1%29

The son worked together with the man for t hours.
Solve for t.