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    Question

    Four friends ('W', 'X', 'Y', and 'Z') went to dinner and

    received a bill of Rs. 1,800. They agreed that 'W' would pay half of what the other three paid together. 'X' contributed 10% less than what 'W' paid. 'Y' and 'Z' each paid Rs. 50 more than 'W'. Find the amount paid by 'X'.
    A Rs.625 Correct Answer Incorrect Answer
    B Rs.425 Correct Answer Incorrect Answer
    C Rs.450 Correct Answer Incorrect Answer
    D Rs.540 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let the amount paid by 'W' be Rs. 'y'.

    So, the amount paid by 'X', 'Y', and 'Z' together = 2y.

    Thus, we have:

    y + 2y = 1800

    3y = 1800

    y = 600

    Now, amount paid by 'X' = 600 - (0.10 Ă— 600) = 600 - 60 = Rs. 540.

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