SOLUTION: A park has two sprinklers that are used to fill a foutain. One sprinkler can fill the foutain in 3 hours, where as the other sprinkler can fill up the foutain in 6 hours. How long

Algebra ->  Rate-of-work-word-problems -> SOLUTION: A park has two sprinklers that are used to fill a foutain. One sprinkler can fill the foutain in 3 hours, where as the other sprinkler can fill up the foutain in 6 hours. How long       Log On


   

Question 185031: A park has two sprinklers that are used to fill a foutain. One sprinkler can fill the foutain in 3 hours, where as the other sprinkler can fill up the foutain in 6 hours. How long will it take to fill the foutain with both sprinklers operating?
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


If A can do a job in x time periods, then A can do of the job in 1 time period. Likewise, if B can do the same job in y time periods, then B can do of the job in 1 time period.

So, working together, they can do



of the job in 1 time period.

Therefore, they can do the whole job in:



time periods.


John