SOLUTION: a painter can paint a fence in 12 hours working alone, his apprentice who works slower can paint the same fence in 24 hours. how many hours would it take to do the job if they work

Question 929870: a painter can paint a fence in 12 hours working alone, his apprentice who works slower can paint the same fence in 24 hours. how many hours would it take to do the job if they worked together ?
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
The painter can do 1/12 of the job per hour.
The apprentice can do 1/24 of the job pet hour.
Together, they would do1/12+1/24=3/24 of the job each hour,
so, to do the whole job together, it will take them
=

RELATED QUESTIONS
It takes Dave 20 hours to paint a fence. When he works with Mike, they can paint the same (answered by Alan3354,jim_thompson5910)

an experienced painter can paint a picket fence in 20 hours. An apprentice painter can do (answered by mananth)

An experienced painter can paint a fence twice as fast as an inexperienced painter.... (answered by josmiceli)

An experienced painter can paint a fence twice as fast as an inexperienced painter:... (answered by scott8148,ankor@dixie-net.com)

A painter can paint a kitchen in 12 hours. An apprentice can paint the same kitchen in 24 (answered by stanbon)

Ellie can paint a fence in 2 hours. Ilana can paint the same fence in 6 hours. If Ellie... (answered by ikleyn)

A painter can paint a room three hours less than an apprentice. Together they can pain... (answered by Mathtut,gonzo)

It takes Tom 3 hours less to paint a fence than Jim. If the two boys work together, they... (answered by marcsam823)

an experienced painter can paint a garage twice as fast as his apprentice. working... (answered by rwm)