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    Question

    The average number of books sold by Viren in first 5

    months is 3500 and in first 6 months is 4300. If the number of books sold by him in 7th month is 30% less than that in 6th month, then find the total number of books sold in the seventh month.
    A 5810 Correct Answer Incorrect Answer
    B 4290 Correct Answer Incorrect Answer
    C 6960 Correct Answer Incorrect Answer
    D 5590 Correct Answer Incorrect Answer
    E 5460 Correct Answer Incorrect Answer

    Solution

    Number of books sold by Viren in first 5 months = 3500 × 5 = 17500 Number of books sold by Viren in first 6 months = 4300 × 6 = 25800 Number of books sold by Viren in 6th month = 25800 - 17500 = 8300 Therefore, number of books sold by Viren in 7th month = 8300 × 0.70 = 5810

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