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    Question

    18 kg of sugar costing Rs. 40 per

    kg is mixed with 12 kg of sugar costing Rs. z per kg. If the cost of the mixture is Rs. 45 per kg, find the value of z.
    A 52.5 Rs/kg Correct Answer Incorrect Answer
    B 68.5 Rs/kg Correct Answer Incorrect Answer
    C 66.5 Rs/kg Correct Answer Incorrect Answer
    D 72.5 Rs/kg Correct Answer Incorrect Answer

    Solution

    ATQ,

    Using the weighted average formula:

    Simplify:

    z = 52.5 Rs/kg

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