Question
Dana and Jane's total mass is 32 kg. Jane and Penelope's total mass is 65 kg. Penelope is four times as heavy as Dana. What is the average mass of the three friends?
3 m

Click button first when a symbol is required. X

Dana and Jane's total mass is 32 kg. Jane and Penelope's total mass is 65 kg. Penelope is four times as heavy as Dana. What is the average mass of the three friends?