A recipe calls for grape juice and apple juice in a ratio of

A recipe calls for grape juice and apple juice in a ratio of 3 cups to 5 cups. To the nearest cup, estimate the amount of grape juice Barry should use if he has 16 cups of apple juice. Show OR describe each step of your work, even if you do it in your head (\"mental math\") or use a calculator.

Solution

Grape / Apple

=> 3/5 = G/16
=> G= 3*16/5
=> G=48/5 => Approximate G = 10