The complete job takes 6*8*5=240 man-hours
240/(4*5) = 12 days for the 4 men.
Or, using ratios of the number of men and hours, it will take
5 * (6/4)*(8/6) = 12 days
That is, with only 4/6 as many men, it will take 6/4 as long;
working only 6/8 as many hours per day, it will take 8/6 as many days
#Anyone to help me this question#
If 6 men can take 8 hours to complete a job for 5 days. How long will 4 men finish the job if they use 6 hours?
1 answer
5 answers