SOLUTION: Four men working together can dig a ditch in 42 days. They begin, but one man works only half-days. How long will it take to complete the job?
-- The answer is 48 days, but how d
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Question 397884: Four men working together can dig a ditch in 42 days. They begin, but one man works only half-days. How long will it take to complete the job?
-- The answer is 48 days, but how do I get there? Been a 10+ years since I've done a problem like this. Thank you!
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Four men working together can dig a ditch in 42 days.
Find the number of man-days to complete the job
4*42 = 168 man-days
:
They begin, but one man works only half-days.
How long will it take to complete the job?
Let d = no. days to complete the job
d(3 + .5) = 168
3.5d = 168
d =
d = 48 days
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