Question
Min and Eva's total mass is 39 kg. Eva and Xandra's total mass is 81 kg. Xandra is three times as heavy as Min. What is the average mass of the three friends?
3 m

Click button first when a symbol is required. X

Min and Eva's total mass is 39 kg. Eva and Xandra's total mass is 81 kg. Xandra is three times as heavy as Min. What is the average mass of the three friends?