Twelve children take sixteen days to complete a work which can be completed by 8 adults in 12 days. Sixteen adults left and four children joined them. How many days will they take to complete the remaining work?
(A) 3 (B) 4 ( C) 6 (D) 8

• 12 children 16 days work,
  One child’s one day work = 1/192.
  
  
  8 adults 12 days work,
  One adult’s one day’s work = 1/96.
  
  
  Work done in 3 days = ((1/96) x 16 x 3) = 1/2
  
  
  Remaining work = 1 – 1/2 = 1/2
  
  
  (6 adults+ 4 children)’s 1 day’s work = 6/96 + 4/192 = 1/12
  
  1/12 work is done by them in 1 day.
  
  1/2 work is done by them in 12 x (1/2) = 6 days.
• 6 years agoHelpfull: Yes(0) No(1)
• why did you take work done in 3 days?can you please explain..@sandesh
• 6 years agoHelpfull: Yes(0) No(0)