16 men can do a piece of work in 16 days four days after they start the work, 8 more persons have joined in . how many more days will be need to complete the rest of the work

• 16 men's 1 day work = 1/16
  1 mens' 1 day work = 1/16*16= 1/256
  
  16 men's 4 day work = 4 * 1/16 = 1/4
  
  Remaining work = 1 - 1/4 = 3/4
  
  8 more persons joined ...
  (16+8) person's 1 day work = 24 * 1/256 = 6/64 = 3/32
  
  They ll finish d remaining (3/4) part of d work in
  
  3/4 * 32/3 = 8 days
  
  8 more days needed to finish d remaining work
• 10 years agoHelpfull: Yes(20) No(0)
• work done by 1 man in 1 day = 1/256
  work done by 16 men in 4 days = 1/4
  work done by 24 men in 1 day = 3/32
  days to complete 3/4th work = 32/3*3/4 = 8 days
• 10 years agoHelpfull: Yes(0) No(0)
• 16 men can do work for 16 days
  lets 1 men can do 1 unit of work in 1 day
  16*1 =16 unit daily work of all 16 men
  total 16 days work=16*16=256 units
  first four day 16 people can do work
  work completed in 4 days by 16 people 16*4=64 units
  remaining work =256-64=192 units
  now 8 more men joined total 24 men now they daily do 24 units of work
  days=remaining work/daily work
  192/24=8 days
• 5 years agoHelpfull: Yes(0) No(0)
• For thise we need to use measurement of work I.e work = person ×day.
  16M -->16 days.
  Now here befor 4 days only 16M were work.so
  16M --> 4 days.
  After 4 days 8 person joined tk him ,so tatal number of person will be =24M.
  24M--> ?. Now.....we concluded that
  16M×16day=16M×4day+24M×D.......(D is required days)....solve it as usual..we get
  192M=24M×D
  D=8 days.🙏
• 4 years agoHelpfull: Yes(0) No(0)