+0  
 
0
48
1
avatar

25 men are employed to do a work in, which they could finish in 20 days but they drop off by 5 men at the end of every 10 days. In what time will the work be completed?

 Aug 18, 2020
 #1
avatar+26620 
+1

25 men  x  20 days = 500 man-days to complete the job

   at the end of 10 days  they have completed 250 man days   leaving  250 yet to be completed

       in 10 more days   they complete  20 x10 = 200 man-days     leaving  15 men to complete 50 man -days of work

              3 1/3 more days

10 days + 10 days + 3 1/3 days = ~ 24 days

 Aug 18, 2020

13 Online Users

avatar