6 person can complete work in 6 days.after 2 days startd work 3 more person join them.in how many days whole work be complete.

• 6 person's 6 days work=1
  6 person's i day work= 1/6
  1 person's 1 day work=1/(6*6)=1/36
  after 2 days 3 more people joined
  hence, 2* 1/6+9*1/36*t=1
  => 1/3 + t/4= 1
  => t= 8/3
  hence time req to complete the work= 2+8/3=14/3 days
• 11 years agoHelpfull: Yes(2) No(1)