MCQOPTIONS
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				| 1. | 
                                    A person sells a book for Rs. 11. He gains as many percent as its cost price in rupees. What is the cost price? | 
                            
| A. | Rs. 10 | 
| B. | Rs. 12 | 
| C. | Rs. 7.50 | 
| D. | Rs. 5.50 | 
| Answer» B. Rs. 12 | |