MCQOPTIONS
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				| 1. | 
                                    The respective ratio between the number of CDs produced by the company in the year 2009 and the number of keyboards produced by the company in the year 2005 is | 
                            
| A. | 9 : 10 | 
| B. | 11 : 10 | 
| C. | 10 : 9 | 
| D. | 10 : 11 | 
| Answer» B. 11 : 10 | |