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| 1. |
The average age of 6 brothers is 15 years. The age of the youngest brother is 5 years. What was the average age (in years) of the group of brothers at the time of birth of the youngest brother? |
| A. | 14 |
| B. | 15 |
| C. | 12.5 |
| D. | 12 |
| Answer» E. | |