40 men can complete a work in 40 days.they started the work together but at the end of each 10th day ,5 men left the job.the work would have been completed in how many days?

• Total men days = 40 *40 = 1600 men-days.
  40 men work for 10 days = 400 men days
  35men work for 10 days = 350 men days
  30 men work for 10 days = 300 men days.
  25 men work for 10 days = 250 men days
  20 men work for 10 men days = 200 men days.
  Total men days till now = 400 +350 +300 +250 +200 = 1500 men days.
  Rest men days = 1600 - 1500 = 100 men days.
  Now 15 men will work for complete 100 men days in = 100/15 = 6.66 days.
  So total days = 10*5 + 6.66 = 56.66 days.
• 7 years agoHelpfull: Yes(5) No(0)
• 55 days 40×40 =1600mendays
  40×10=400. Men days left 1200 ... countiuy this and we will get answrr
• 7 years agoHelpfull: Yes(2) No(0)
• the work will be completed in 240/7+10 days means 310/7 days
• 7 years agoHelpfull: Yes(0) No(0)