SOLUTION: If person A takes 20 hours to complete the work and person B takes 30 hours to complete the same work, together in how much time the work will get done?
Algebra.Com
Question 849924: If person A takes 20 hours to complete the work and person B takes 30 hours to complete the same work, together in how much time the work will get done?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
1/20+1/30=1/x
3/60+2/60=1/x
5/60=1/x
1/12=1/x
x=12
RELATED QUESTIONS
A and B finish a work together in 6 hours. A, if works alone takes 10 hours to complete... (answered by josgarithmetic)
It takes person A 4 hours less than person B to complete a certain task. Working... (answered by josmiceli)
A takes 20 days to complete a job X. B takes 30 days to complete the same job X. How... (answered by CubeyThePenguin)
It takes a more experienced person 1 hour less to complete a task than it does a less... (answered by ptaylor)
Radha and medha together takes 10 hours to complete a work. Radha takes 15 hours to... (answered by josgarithmetic,ikleyn)
Eduardo takes 3 hours longer to complete a job than Bill. If they can complete the job... (answered by TimothyLamb,MathTherapy)
if one person work in 4 hours and another person work in 6 hours if both percons sre work (answered by mathstutor494)
If it takes 4 hours for one person to perform a task and it takes another person 3 hours... (answered by flame8855)
Adam takes 4 hours to do a job and Sloan takes 5 hours to do the same job. If they work... (answered by lynnlo)