SOLUTION: A paint job can be done by 10 men in 6 hours or by 18 boys in 4 hours. If only five men and 8 boys are available and all work together how long would it take them to do the job?

Algebra ->  Rate-of-work-word-problems -> SOLUTION: A paint job can be done by 10 men in 6 hours or by 18 boys in 4 hours. If only five men and 8 boys are available and all work together how long would it take them to do the job?      Log On


   

Question 991499: A paint job can be done by 10 men in 6 hours or by 18 boys in 4 hours. If only five men and 8 boys are available and all work together how long would it take them to do the job?
Answer by josgarithmetic(39800) About Me  (Show Source):
You can put this solution on YOUR website!
R, rate for one man
r, rate for one boy
t, the unknown time if the described group works together

system%2810%2AR%2A6=1%2C18r%2A4=1%2C%285R%2B8r%29%2At=1%29;
Most important is that this system makes sense. If it does, then you you what to do.