# A baked potato provides an average of 31 mg of vitamin C. If 5.0 lb. of potatoes has 15 potatoes, how many milligrams of vitamin C are provided per pound of potatoes?

May 15, 2018

$93$ miligrams
If $5$ pounds of potatoes are equal to $15$ potatoes, then a pound of potatoes is equal to $\frac{15}{5} = 3$ potatoes.
So, the total vitamin $C$ in a pound of potatoes is equal to:
(31 \ "mg")/(color(red)cancelcolor(black)"potato")*(3color(red)cancelcolor(black)"potatoes")/("pound")=93 \ "mg/pound"