Question 517186
it takes 9 men to compete a job in 8 days.
Find the man-days to complete the job:  9*8 = 72 mandays 
:
How many men would it take to complete the job in 6 days?
let m = no. of men accomplish this in 6 days
6m = 72
m = {{{72/6}}}
m = 12 days