A and B together can complete a piece of work in 4 days. If A alone can complete the same work in 12 days. in how many days can b alone complete that work?
A. 1/3 days B. 1/6 days
C. 1/9 days D. 1/12 days

• (A + B)'s 1 day's work = (1/4). A's 1 day's work = (1/12).
  B's 1 day's work =((1/4)-(1/12))=(1/6)
  
  Hence, B alone can complete the work in 6 days
• 11 years agoHelpfull: Yes(6) No(1)
• A alone can do a work in =1/12 days
  A+B can do it in =1/4
  so B=1/4 - 1/12= 1/6
  so ans is 1/6 days
• 4 years agoHelpfull: Yes(0) No(0)