📢 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 copy 80 pages in 20 hours, A and B together can

      copy 135 pages in 27 hours. Then Y can copy 20 pages in
      A 20 hours Correct Answer Incorrect Answer
      B 21 hours Correct Answer Incorrect Answer
      C 22 hours Correct Answer Incorrect Answer
      D 25 hours Correct Answer Incorrect Answer

      Solution

      Number of pages copied by x in hour = 80/20 = 4 Number of pages copied by x and y in 1 hour = 135/27 = 5 ∴ Number of pages copied by y in 1 hour = 5 – 4 = 1 ∴ Required time = 20 hours.

      Practice Next

      Relevant for Exams:

      ask-question