Ask a New Question

Question

lisa can shovel snow from her driveway in 40 minutes jim can do the same job in 50 minutes how long would it take lisa and jim to shovel the driveway together?
13 years ago

Answers

Reiny
lisa's rate = 1/40
jim's rate = 1/50
combined rate = 1/40 + 1/50 = 9/200

time for job = 1/(9/200) = 200/9 or 22 2/9 or appr. 22.22 minutes
13 years ago

Related Questions

Sue can shovel snow from her driveway in 45 minutes. Bill can do the same job in 65 minutes. How lon... Lisa can shovel snow from her driveway in 50 min. Jim an do the same job in 55 min.How long would it... Janet can shovel snow from her driveway in 55 minutes. Jim can do the same job in 35 minutes. How... Sue can shovel snow from her driveway in 35 minutes. Bill can do the same job in 50 minutes. How lon... Jenny can shovel snow from her driveway in 60 minutes. Tom can do the same job in 55 minutes. How lo... Sue can shovel snow from her driveway in 45 minutes. Jim can do the same job in 55 minutes. How long... sue an shovel snow from her driveway in 55 minutes. Bill can do the same job in 60 minutes. how long...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use