Question
Zoe and Joelle's total mass is 51 kg. Joelle and Fiona's total mass is 89 kg. Fiona is three times as heavy as Zoe. What is the average mass of the three friends?
3 m

Click button first when a symbol is required. X

Zoe and Joelle's total mass is 51 kg. Joelle and Fiona's total mass is 89 kg. Fiona is three times as heavy as Zoe. What is the average mass of the three friends?