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      Question

      A bag contains rupee, 50 paise, 25 paise and 10 paise

      coins in the proportion 1:3:5:7. If the total amount is ` 22.25, find the number of coins of each kind:
      A ₹ 1, 5; 50 paise 25; 25 paise, 15; 10 paise, 25 Correct Answer Incorrect Answer
      B ₹ 1, 5; 50 paise 15; 25 paise, 25; 10 paise, 35 Correct Answer Incorrect Answer
      C ₹ 1, 5; 50 paise 25; 25 paise, 15; 10 paise, 35 Correct Answer Incorrect Answer
      D ₹ 1, 5; 50 paise 25; 25 paise, 25; 10 paise, 25 Correct Answer Incorrect Answer

      Solution

      Let, x be the common multiple. 1 rupee coins = x 50 paise coins = 3x 25 paise coins = 5x 10 paise coins = 7x According to the question, => (100 × x) + (50 × 3x) + (25 × 5x) + (10 × 7x) = 22.25 × 100 => 100x + 150x + 125x + 70x = 2225 => 445x = 2225 => x = 5 Therefore, the number of, 1 rupee coins = 5 50 paise coins = 15 25 paise coins = 25 10 paise coins = 35

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