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| 1. |
The average weight of some students in a class was 60.5 kg. When 8 students, whose average weight was 65 kg. Joined the class, then the average weight of all the students increased by 0.9kg. The number of students in the class, initially, was: |
| A. | 40 |
| B. | 32 |
| C. | 42 |
| D. | 37 |
| Answer» C. 42 | |