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.Solution
Number of books sold by Viren in first 5 months = 4200 × 5 = 21000 Number of books sold by Viren in first 6 months = 5000 × 6 = 30000 Number of books sold by Viren in 6th month = 30000 - 21000 = 9000 Therefore, number of books sold by Viren in 7th month = 9000 × 0.74 = 6660
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