SOLUTION: Thirty men take 20 days to complete a job working 9 hours a day. How
many hours a day should 40 men work to complete the job?
Algebra.Com
Question 238447: Thirty men take 20 days to complete a job working 9 hours a day. How
many hours a day should 40 men work to complete the job?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Thirty men take 20 days to complete a job working 9 hours a day.
How many hours a day should 40 men work to complete the job?
:
The easiest way to do this is use "man-hours"
:
30 * 20 * 9 = 5400 man-hours required to complete the job
:
Let x = no. hrs a day to do the same job (assuming in 20 days)
40 * 20 * x = 5400
800x = 5400
x =
x = 6.75 hrs a day for 20 days to do the same job
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