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    Question

    A store has 40 laptops and 60 tablets. Average cost of each

    laptop is Rs. 50,000 and that of each tablet is Rs. 25,000. Find the average cost (in Rs.) of all the laptops and tablets.
    A Rs.14,200 Correct Answer Incorrect Answer
    B Rs.18,500 Correct Answer Incorrect Answer
    C Rs.12,000 Correct Answer Incorrect Answer
    D Rs.13,230 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Required average = (40 × 50000 + 60 × 25000) ÷ (40 + 60)

    = (2000000 + 1500000) ÷ 100

    = (3500000 ÷ 100) = Rs. 35,000

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