- A44
- B46
- C44.5
- D45
Step-by-Step Solution
Total weight = kg. Combined mean = 1800 ÷ 40 = 45 kg.
Answer: D) 45
The mean weight of 25 boys is 48 kg and the mean weight of 15 girls is 40 kg. Find the mean weight (in kg) of all 40 students.
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