Question
The average number of books sold by Viren in first 5
months is 3800 and in first 6 months is 4600. If the number of books sold by him in 7th month is 35% 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 = 3800 × 5 = 19000 Number of books sold by Viren in first 6 months = 4600 × 6 = 27600 Number of books sold by Viren in 6th month = 27600 - 19000 = 8600 Therefore, number of books sold by Viren in 7th month = 8600 × 0.65 = 5590
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