SOLUTION: 2. A man can do a job in h hours alone and his son can do it in 2h hours alone. Together, how many hours will it take them to do the job?
Algebra ->
Rate-of-work-word-problems
-> SOLUTION: 2. A man can do a job in h hours alone and his son can do it in 2h hours alone. Together, how many hours will it take them to do the job?
Log On
Question 794843: 2. A man can do a job in h hours alone and his son can do it in 2h hours alone. Together, how many hours will it take them to do the job? Answer by majo89(3) (Show Source):
You can put this solution on YOUR website! if A does a job in X hours and B in Y hours then together they will do the job in
XY/(X+Y) HOURS.
here 2h*h/3h
2/3 h hours.
(