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    Question

    The ratio of tea cups to coffee cups in a canteen is

    6:5. If 18 tea cups are broken and 12 new coffee cups are added, the count of both becomes equal. Find the original number of coffee cups.
    A 148 Correct Answer Incorrect Answer
    B 174 Correct Answer Incorrect Answer
    C 150 Correct Answer Incorrect Answer
    D 182 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let the number of tea and coffee cups be '6n' and '5n', respectively.

    So, 6n - 18 = 5n + 12

    Or, 'n' = 30

    Therefore, number of coffee cups = 30 Ă— 5 = 150

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