18 men can do a work in 16 days.AFTER 3 DAYS 5 MEN LEFT. HOW MANY DAYS IT WILL TAKE TO GET THE REMAINING WORK DONE?

• 21 days
  
  18 men ---> 1 work 1 man ---> 1/18th work 1 man ----> 1/(18*16) 5 men -----> 5*3/(18*16) work After 5 days, 15/(288) work is completed
  => 273/288 work is remaining
  
  Now out of 18 men, 13 men are working
  Let 13 men take x days to complete remaining work
  
  => 13*x / (16*18) = 273/288
  => x = 21 days
• 10 years agoHelpfull: Yes(0) No(0)
• 18 days
  
  
  18 men 16 days -------> 1 work
  18 men 1 day = 1/16 work
  hence, 18 men in 3 days can do = 3/16 work
  After 3 days 5 men left the work,then remaining work = 1-(3/16)
  = 13/16 work
  let 13 men out of 18 can do remaining work in x days.
  hence, 13 * x / (18 * 16) = 13/16
  = 18 days
• 10 years agoHelpfull: Yes(0) No(0)