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    Question

    A piggy bank holds 20-paise, 50-paise and 2-rupee coins in

    the ratio 15:12:9. The total amount inside is Rs. 3006. How many 50-paise coins are there?
    A 1520 Correct Answer Incorrect Answer
    B 1332 Correct Answer Incorrect Answer
    C 1662 Correct Answer Incorrect Answer
    D 1470 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let number of coins = 15x, 12x, 9x

    Amount = (15x × 0.20) + (12x × 0.50) + (9x × 2)

    ⇒ 3x + 6x + 18x = 3006

    ⇒ 27x = 3006

    ⇒ x = 111

    So, number of 50-paise coins = 12x = 12 × 111 = 1332

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