SOLUTION: if 6 roofers take 2 days to put on a new roof, how long would it take 4 roofers to do the same job, assuming they each work at the same rate?

Question 586466: if 6 roofers take 2 days to put on a new roof, how long would it take 4 roofers to do the same job, assuming they each work at the same rate?
Found 2 solutions by ankor@dixie-net.com, eschwartz:
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
if 6 roofers take 2 days to put on a new roof, how long would it take 4 roofers to do the same job, assuming they each work at the same rate?
:
Find the number of man-days to do the job
6 * 2 = 12 man-days
:
"how long would it take 4 roofers to do the same job,"
let d = no. of days for 4 men to do it
4d = 12
d = 12/4
d = 3 days
Answer by eschwartz(9) (Show Source): You can put this solution on YOUR website!
You could also say like this:
You now have of the work force, so you will need the time.
Workers are:
Time required is:
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