Mathematics · Averages
There are two groups, C and D, of a class consisting of 32 and 40 students, respectively. If the average weight of group C is 60 kg and that of group D is 33 kg, then find the average weight of the whole class.
- 144.4 kg
- 245.2 kg
- 345 kg✓
- 446.5 kg
Correct answer
45 kg
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