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    Question

    The average number of books sold by Viren in first 5

    months is 4200 and in first 6 months is 5000. If the number of books sold by him in 7th month is 26% less than that in 6th month, then find the total number of books sold in the seventh month.
    A 6660 Correct Answer Incorrect Answer
    B 4290 Correct Answer Incorrect Answer
    C 6960 Correct Answer Incorrect Answer
    D 5590 Correct Answer Incorrect Answer

    Solution

    Number of books sold by Viren in first 5 months = 4200 ร— 5 = 21000 Number of books sold by Viren in first 6 months = 5000 ร— 6 = 30000 Number of books sold by Viren in 6thย month = 30000 - 21000 = 9000 Therefore, number of books sold by Viren in 7thย month = 9000 ร— 0.74 = 6660

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