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    Question

    The average price of 80 mobile phones is Rs. 30,000. If

    the highest and lowest price mobile phones are sold out then the average price of remaining 78 mobile phones is Rs. 29,500. The cost of the highest mobile is Rs. 80,000. The cost of lowest price mobile is?
    A Rs. 18000 Correct Answer Incorrect Answer
    B Rs. 15000 Correct Answer Incorrect Answer
    C Rs. 19000 Correct Answer Incorrect Answer
    D CanтАЩt be determined Correct Answer Incorrect Answer

    Solution

    ATQ, Average price of 80 mobile phones is = 30,000 Sum of price of 80 mobile phones is = 30,000 ├Ч 80 = Rs. 24,00,000 Sum of price of 78 mobile phones is = 29,500 ├Ч 78 = Rs. 23,01,000 Sum of highest and lowest price of phones = 24,00,000 тАУ 23,01,000 ┬а= Rs. 99,000 тИ┤ Cost of lowest mobile phone = 99,000 тАУ 80,000 = Rs. 19,000

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