SOLUTION: Company X can install chairs in a theater in 10 hours. Company Y can install them in 15 hours. How long would it take the two companies, working together to install the chairs.
__
Algebra.Com
Question 40409: Company X can install chairs in a theater in 10 hours. Company Y can install them in 15 hours. How long would it take the two companies, working together to install the chairs.
______hours.
Thanks
Answer by fazlerabbi(9) (Show Source): You can put this solution on YOUR website!
X can install chairs in 10 hrs. So, in 1 hour X performs 1/10 part of the work.
Y can install chairs in 15 hrs. So, in 1 hour Y performs 1/15 part of the work.
X and Y together in 1 hour perform (1/10 + 1/15) = 1/6 part of the work.
1/6 part of the work is done in 1 hour
So, 1 (whole) work is done in 6 hours.
RELATED QUESTIONS
Company X can install chairs in a theater in 10 hours. Company Y can install them in 15... (answered by venugopalramana)
Company X can install chairs in a theater in 10 hours. Company Y can install them in 15... (answered by checkley71)
A mechanic can install carburetors in 3 cars every 4 hours. At that rate, how long will... (answered by checkley77)
an electrician can install the electric wires in a house in 14 hours.a second electrician (answered by edjones)
Five workers install a pipe in 15 hours. How long will it take 9 workers to install the... (answered by Edwin McCravy)
Here's my problem:
Buddy and Ken can install a ceiling panel in 10 minutes. Tom and... (answered by ikleyn)
Company A is known to take 4 days longer than Company B to install the plumbing in a... (answered by josmiceli)
I dont understand what we have to do for this problem.
Working alone, Anton can... (answered by josmiceli,stanbon)
Ricky can install a basic security system in 4 hours. If it takes Ricky and Mark 2 hours... (answered by awang1996)