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    Question

    Ravi has 98 marbles of two colours – green and yellow. If

    he bought 28 more yellow marbles, the ratio of green to yellow marbles would become 3:4. Find how many yellow marbles Ravi originally had.
    A 24 Correct Answer Incorrect Answer
    B 64 Correct Answer Incorrect Answer
    C 34 Correct Answer Incorrect Answer
    D 44 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let the number of green and yellow marbles after buying 28 more be ‘3x’ and ‘4x’ respectively.

    ATQ:

    3x + 4x = 98 + 28

    7x = 126

    x = 18

    Number of yellow marbles after buying = 4x = 4 × 18 = 72

    Number of yellow marbles Ravi originally had = 72 - 28 = 44

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