2 persons can finish a job in 8 days. First person alone can finish the work in 24 days. How many days does the second person take to finish the job?

• 2 persons can do work in 1 day = 1/8
  First person can do work in 1 day = 1/24
  Second person can do work in 1 day = 1/8-1/24 = 1/12
  So Second person can finish work in 12 days
• 13 years agoHelpfull: Yes(18) No(0)
• two person completed a job i.e, A+B=1/8 days ,
  First person finish a job i.e A=1/24 days
  Second person finish a job i.e, (1/24)+B=1/8
  =1/8-1/24
  =2/24
  =1/12
  therefore B=12
• 13 years agoHelpfull: Yes(9) No(1)
• A+B's 1 day work=1/8
  A's 1 day work=1/24
  so, B's 1 day work=1/8-1/24=3-1/24=1/12
  then, B completes the full work in 12 days
• 13 years agoHelpfull: Yes(3) No(0)
• (a+b)'s 1day"s work is=1/8
  a's 1day wrk is =1/24
  then b"s 1day work is=1/8-1/24=2/3
• 13 years agoHelpfull: Yes(2) No(5)
• 12 .
  why becaus A+B both can do 8 days i.e xy/x+y=8
  A can do in 24 days..then x=24
  now y=12 days
• 4 Months agoHelpfull: Yes(0) No(0)