SOLUTION: A painter can paint a kitchen in 12 hours. An apprentice can paint the same kitchen in 36 hours. If they worked together, how long would it take them to paint the kitchen?

Algebra ->  Rate-of-work-word-problems -> SOLUTION: A painter can paint a kitchen in 12 hours. An apprentice can paint the same kitchen in 36 hours. If they worked together, how long would it take them to paint the kitchen?      Log On


   



Question 567857: A painter can paint a kitchen in 12 hours. An apprentice can paint the same kitchen in 36 hours. If they worked together, how long would it take them to paint the kitchen?
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
Painting the kitchen is 1 job 1 job
Painter 12 hours
he does 1/12 job in 1 hour
Apprentice 36 hours
he does 1/36 of thejob in 1 hour


Together they will do 1/12 + 1/36
Together they will do 1/ 9 of the job in one hour
For 1 job they will take 9 hours