In order to find the answer, we should know how many calories are in one gram carbohydrate. Carbohydrate provides 4 calories per gram. So, to find out how many grams of carbohydrate are in 160 calories from carbohydrate we should divide 160 with 4: 160:4=40.
There are 40 grams of carbohydrate in a a product that contains 160 calories from carbohydrates. Correct answer: C