<PRE><B>Question 941375</B>
If 8 men took 10 days to complete a job. And 3 men fell ill on the six day.
 How much longer would it take to complete the job putting into consideration the men worked evenly
:
Find how many man-days required to do the job.
8 * 10 = 80 man-days
:
When three men call in sick on the 6th day. (completed 5 days of work) 
8 men worked for five days, 
5 remaining men take d days to complete the job
(8 * 5) + 5d = 80
40 + 5d = 80
5d = 80 - 40
5d = 40
d = 40/5
d = 8 more days</PRE>