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    Question

    A piggy bank contains ₹10, ₹5 and ₹2 coins in the

    ratio 3:4:6. If the total amount in the piggy bank is ₹620, how many ₹2 coins are there?
    A 60 Correct Answer Incorrect Answer
    B 75 Correct Answer Incorrect Answer
    C 45 Correct Answer Incorrect Answer
    D 55 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let the number of ₹10, ₹5 and ₹2 coins be 3x, 4x and 6x respectively.

    ATQ:

    (3x × 10) + (4x × 5) + (6x × 2) = 620

    Or, 30x + 20x + 12x = 620

    Or, 62x = 620

    Or, x = 620 / 62 = 10

    So, number of ₹2 coins = 6x = 6 × 10 = 60

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