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

      Question

      Ratio of number of book to number of pen sold by a

      shopkeeper is 13:8, respectively, while ratio of number of pen to number of pencil sold by the same shopkeeper is 4:13, respectively. If price of each book, each pen and each pencil is Rs. 40, Rs. 20, and Rs. 10 respectively then revenue generated by shopkeeper is Rs. 20680. Find the number of pen sold by shopkeeper.
      A 176 Correct Answer Incorrect Answer
      B 238 Correct Answer Incorrect Answer
      C 200 Correct Answer Incorrect Answer
      D 240 Correct Answer Incorrect Answer
      E 165 Correct Answer Incorrect Answer

      Solution

      Given: Books : Pens = 13 : 8 Pens : Pencils = 4 : 13 Let Books = 13k and Pens = 8k Also, Pens = 4m and Pencils = 13m Equate Pens: 8k = 4m m = 2k So Pencils = 13m = 13(2k) = 26k Now revenue: Revenue = 40(B) + 20(P) + 10(C) = 40(13k) + 20(8k) + 10(26k) = 520k + 160k + 260k = 940k Given revenue = 20680: 940k = 20680 k = 20680 / 940 = 22 Pens sold: P = 8k = 8 × 22 = 176

      Practice Next
      More Ratio and proportion Questions

      Relevant for Exams:

      ask-question