📢 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’ and ‘B’ together can

      complete a work in 12 days, while ‘B’ and ‘C’ together can complete the work in 8 days. If ‘B’ takes 10 days to complete the work alone then find the time taken by all three together to complete 65% of work.
      A 6 days Correct Answer Incorrect Answer
      B 8 days Correct Answer Incorrect Answer
      C 9 days Correct Answer Incorrect Answer
      D 5 days Correct Answer Incorrect Answer

      Solution

      Let the total work = 120 units
      Efficiency of (A + B) = 120/12 = 10 units/day
      Efficiency of (B + C) = 120/8 = 15 units/day
      Efficiency of ‘B’ = 120/10 = 12 units/day
      Efficiency of (A + B + C) = (10 + 15 – 12) = 13 units/day
      Required time taken = (0.65 × 120)/13 = 6 days

      Practice Next
      More Time and work Questions

      Relevant for Exams:

      ask-question