SOLUTION: It takes 4 hours for 5 painters to paint a house. How long would it take for 9 painters to do the job? Please help me out here!

Question 736834: It takes 4 hours for 5 painters to paint a house. How long would it take for 9 painters to do the job?
Please help me out here!
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
The rate for the question can be based upon the work rate of 1 man.

If 5 painters need 4 hours to "paint a house", then how much time does 1 painter alone need? Five times longer! This means 1 painter needs hours to paint a house.

Thinking of "paint a house" as the ONE JOB, one painter functions at the rate of 1 job per 20 hours, or jobs per hour.

Now, these uniform work rate situations are characterised as r*t=j, where r is rate in jobs per hour, t is hours, j is amount of jobs. When agents operate simultaneously, the rates are additive.

Can you complete the rest of the problem exercise?
RELATED QUESTIONS
3 painters took 15 hours to paint a house. How long would it take for 9painters to do the (answered by josgarithmetic,DrBeeee)

It took 4 painters 12 days to paint a house. How long would it take 3 painters to paint... (answered by josmiceli)

Please help with the following. I have tried setting up an equation but i cannot seem to... (answered by Cromlix)

It takes 3 painters 10 days to paint a house. How long does it take five painters to do... (answered by Edwin McCravy)

Two houses painters can paint 3 houses in 4 hours. How long would it take 5 house... (answered by richwmiller)

If three painters can paint a house in 12 hours how long would it take 4 painters to... (answered by stanbon)

If 4 painters can paint a house in 9 days,how many days would it take 6 painters to paint (answered by amoresroy)

Two houses painters can paint 3 houses in 40 hours. How long would it take 5 house... (answered by josmiceli)

the amount of time it takes to paint a house varies inversly with the number of painters. (answered by TutorDelphia,josmiceli,scott8148)