Question

Tom is making a punch that contains 80% cranberry juice and the rest ginger ale. The punch has 2 liters of ginger ale.

Answer 1

So the punch has 2 liters of ginger ale. 2 liters of ginger ale is 20 percent of the punch. The punch has 8 liters of cranberry juice, 2 liters of ginger ale. 

P=2g + 80

P is punch, g is ginger ale

b) 8 liters