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1. A man buys 20 pens and 10 books for Tk 400. He sells pens at a profit of 40% and books at a profit of 25%. If his overal profit was Tk. 112, the cost price of a book is (in Tk.)-
- A. 24
- B. 24
- C. 24
- D. 24
Answer: Option C
Explanation:
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