SOLUTION: A. can do a job in 2 hours. B. can do a job in 1 hours. If they both work together, how long will it take them to the job? PLEASE HELP ME!!!

Question 215772: A. can do a job in 2 hours.
B. can do a job in 1 hours.
If they both work together, how long will it take them to the job?
PLEASE HELP ME!!!
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
If A can do the job in 2 hours (that's 120 minutes), then A can do of the job in one minute.
If B can do the job in 1 hour(that's 60 minutes) then B can can do of the job in one minute.
Working together, they can do of the job in one minute, which means that they can do the entire job in 40 minutes.
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