📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!
  • google app store apple app store
    • ✖

      Question

      A can complete a piece of work in  12 days , and B can

      complete it in  18 days . They work together for  4 days , and then A leaves. In how many  more days  will B finish the remaining work?
      A 8 days Correct Answer Incorrect Answer
      B 5 days Correct Answer Incorrect Answer
      C 10 days Correct Answer Incorrect Answer
      D 12 days Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Assume total work = LCM(12, 18) = 36 units A’s rate = 36/12 = 3 units/day B’s rate = 36/18 = 2 units/day Work done in 4 days together: = (3 + 2) × 4 = 5 × 4 = 20 units Remaining work = 36 − 20 = 16 units B alone does 2 units/day: Time = 16 / 2 = 8 days

      Practice Next
      More Time and work Questions
      ask-question