A and B can do a work in 8 days, B and C can do the same wor in 12 days. A,B and C together can finish it in 6 days. A and C together will do it in how many days?

• (A+B+C) one day work is 1/6
  (B+C) One day work is 1/12
  Thus, A's one day work is 1/6-1/12=1/12
  Similarly, C's one day work is 1/6-1/8=1/24
  Now, A and C together can complete in one day is 1/12+1/24=1/8
  Thus A and C together can complete the work in 8 days
• 12 years agoHelpfull: Yes(3) No(1)
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• A alone will do in 1/6-1/12=1/12
  C alone will do in 1/6-1/8=1/24
  A and C will do in 1/12+1/24=1/8
  i.e 8 days
• 12 years agoHelpfull: Yes(0) No(1)