A bookseller procures 40 books for Rs. 3200 and sells them at a profit equal to the selling price of 8 books. What is the selling price of one dozen books, if the price of each book is same? A. Rs. 720 B. Rs. 960 C. Rs. 1200 D. Rs. 1440 Answer: Option C

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Solution(By Apex Team)

Cost price of each book, $=\frac{3200}{40}$ = Rs. 80. Now, Selling Price of 40 books = CP of 40 books + SP of 8 books. Selling Price of 40 books – SP of 8 books = CP of 40 books. SP of 32 books = Rs. 3200 SP of 1 book $=\frac{3200}{32}$ = Rs. 100. So, Selling price of one dozen (12) book = 12 × 100 = Rs. 1200

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