Question
Roshel and Fanny's total mass is 48 kg. Fanny and Yoko's total mass is 82 kg. Yoko is three times as heavy as Roshel. What is the average mass of the three friends?
3 m

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Roshel and Fanny's total mass is 48 kg. Fanny and Yoko's total mass is 82 kg. Yoko is three times as heavy as Roshel. What is the average mass of the three friends?