Mathematics · Averages
In a group of 32 students, the average weight was 18.5 kg. When 4 students left the group, the average came down to 15.5 kg. What was the average weight (in kg) of those 4 students?
- 136.5
- 227.5
- 337.5
- 439.5✓
Correct answer
39.5
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