MCQOPTIONS
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| 1. |
Average age of 6 boys is 12 years. The average age of 4 other boys is 18 years. Find the average age of all 10 boys. |
| A. | 12 years |
| B. | 14.4 years |
| C. | 15.16 years |
| D. | 13 years |
| Answer» C. 15.16 years | |