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    Question

    Out of 1800 members in a library, 30% have premium

    membership. Among those, 1/6 are senior citizens. How many non-senior members have premium membership?
    A 450 Correct Answer Incorrect Answer
    B 733 Correct Answer Incorrect Answer
    C 355 Correct Answer Incorrect Answer
    D 338 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Number of premium members = 0.30 × 1800 = 540

    Number of senior citizens with premium = 540 / 6 = 90

    Number of non-senior members with premium = 540 – 90 = 450

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