Mathematics, 04.06.2021 14:40 bayliedb

The average mass of 3 boys is 45.2 kg and the average mass of 4 girls is 40.8 kg. When one of the girls joins the group of boys, the average mass of the three boys is 44.6 kg. The what is the average mass of the remaining 3 girls?

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The average mass of 3 boys is 45.2 kg and the average mass of 4 girls is 40.8 kg. When one of the gi...