MCQOPTIONS
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				| 1. | 
                                    Q: A wheel that has 6 cogs is meshed with a larger wheel of 14 cogs. When the smaller wheel has made 21 revolutions, then the number of revolutions made by the larger wheel is ? | 
                            
| A. | 11 | 
| B. | 7 | 
| C. | 9 | 
| D. | 13 | 
| Answer» D. 13 | |