SOLUTION: Barry can do a certain job in 6 hours, whereas it takes Samuel 9 hours to do the same job. How long would it take them to do the job working together?

Question 792405: Barry can do a certain job in 6 hours, whereas it takes Samuel 9 hours to do the same job. How long would it take them to do the job working together?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Barry can do a certain job in 6 hours, whereas it takes Samuel 9 hours to do the same job. How long would it take them to do the job working together?
--------
Barry rate:: 1/6 job/hour
Sam rate:::: 1/9 job/hour
Together rate: 1/x job/hour
--------
Equation:
rate + rate = together rate
1/6 + 1/9 = 1/x
9x + 6x = 54
15x = 54
x = 3.6 hours = 3hrs 36 minutes
------------------------------------
Cheers,
Stan H.
==============
RELATED QUESTIONS
Barry can do a certain job in 9 hours, whereas it takes Samuel 11 hours to do the same... (answered by Alan3354)

Barry can do a certain job in 10 hours, whereas it takes Samuel 12 hours to do the same... (answered by drcole)

Barry can do a certain job in 8 hours, whereas it takes Samuel 12 hours to do the same... (answered by ewatrrr)

Barry can do a certain job in 3 hours. whereas it takes Sanchez 5 hours to do the same... (answered by AgusKwan)

sanchez can do a certain job in 2 hours, whereas it takes barry 3 hours to do the same... (answered by richwmiller)

Barry can do a certain job in 3 hours, whereas Sanchez 5 hours to do the same job. How... (answered by stanbon)

Barry can do a certain job in 2 hours, where as it takes Sanchez 3 hours to do the same... (answered by checkley71)

johnny can do a job in 6 hours. jeffrey can do the same job in 9 hours. how long would it (answered by ewatrrr)

One worker takes 20 hours to do a job. A second worker can do the same job in 15 hours.... (answered by richwmiller)