SOLUTION: Janet can shovel snow from her driveway in 65 min. Bill can do the job in 35 min. How long would it take for them to do the job together?
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Question 320652: Janet can shovel snow from her driveway in 65 min. Bill can do the job in 35 min. How long would it take for them to do the job together? Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! Janet can shovel snow from her driveway in 65 min.
Bill can do the job in 35 min.
bill can do 1/65 of the job in 1 minute
bill can do 1/35 of the job in 1 minute
together they do 1/65+1/35 of the job in 1 minute
=35+65 / 35*65
=100/2275
..
They take 2275 / 100 minutes to do the job together
= 22.75 minutes
