SOLUTION: Marko can finish a job in 6 hours. Kira can finish the same job in 4 hours. How many hours do they need to finish the job if they work together?

Algebra ->  Functions -> SOLUTION: Marko can finish a job in 6 hours. Kira can finish the same job in 4 hours. How many hours do they need to finish the job if they work together?      Log On


   

Question 1179490: Marko can finish a job in 6 hours. Kira can finish the same job in 4 hours. How many hours do they need to finish the job if they work together?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
1%2F6%2B1%2F4=1%2Fh

%284%2B6%29%2F24=1%2Fh
10%2F24=1%2Fh
h=24%2F10=2.4=2%264%2F10=2%2624%2F60

2 hours 24 minutes