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    Question

    A shopkeeper bought three items: a microwave for Rs.

    25w, a refrigerator for Rs. 40w, and a washing machine for Rs. 35w. The average price of these items is Rs. 90,000. What is the price difference (in Rs.) between the refrigerator and the microwave?
    A 54010 Correct Answer Incorrect Answer
    B 24430 Correct Answer Incorrect Answer
    C 40500 Correct Answer Incorrect Answer
    D 44160 Correct Answer Incorrect Answer

    Solution

    ATQ;
    Total cost = average × number of products = 90000 × 3 = 270000

    Hence, 25w + 40w + 35w = 100w = 270000 ⇒ w = 2700

    Difference = (40w − 25w) = 15w = 40500

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