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      Question

      A bag contains one-rupee, two-rupee and five-rupee coins

      in the ratio 4:3:2 respectively. If the sum of denominations of all the coins in the bag is Rs. 600, then find the number of five-rupee coins in the bag.
      A 40 Correct Answer Incorrect Answer
      B 60 Correct Answer Incorrect Answer
      C 80 Correct Answer Incorrect Answer
      D 50 Correct Answer Incorrect Answer

      Solution

      Let the number of one-rupee, two-rupee and five-rupee coins be '4n', '3n' and '2n' respectively. So, 4n + 2 x 3n + 5 x 2n = 600 Or, 4n + 6n + 10n = 600 Or, 20n = 600 Or, 'n' = 30 Required number of coins = 2 x 30 = 60

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