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      Question

      'X' settles his bill using

      bitcoins, with the total bill amounting to Rs. 420. The distribution ratio of 50-silver, 1-gold, and 5-gold bitcoins is 120:25:11, respectively. Determine the total value paid through 50-silver bitcoins.
      A Rs.280 Correct Answer Incorrect Answer
      B Rs.225 Correct Answer Incorrect Answer
      C Rs.155 Correct Answer Incorrect Answer
      D Rs.180 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ, The total amount 'P' paid = Rs. 420 Let the number of 50 silver coins, 1 gold coin, and 5 gold coins 'P' paid be 120a, 25a and 11a respectively. (120 × a) × (1/2) + (25 × a) × 1 + (11 × a) × 5 = 420 60a + 25a + 55a = 420 140a = 420 a = 420/140 = 3 Required amount paid by 50 silver coins =120 × (3/2) = Rs.180

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