Question
Anna and Cathy's total mass is 63 kg. Cathy and Elyse's total mass is 89 kg. Elyse is three times as heavy as Anna. What is the average mass of the three friends?
3 m

Click button first when a symbol is required. X

Anna and Cathy's total mass is 63 kg. Cathy and Elyse's total mass is 89 kg. Elyse is three times as heavy as Anna. What is the average mass of the three friends?