A 20 ounce sports drink costs $1.60 and a 32 ounce bottle costs $2.24. Which size is the better value per ounce, and by how much?

Correct answer to question 163 (Arithmetic Reasoning): 1 cent per ounce less for the 32 ounce bottle

Method

Reduce each bottle to a price per ounce. The small bottle costs 1.60 divided by 20, or 8 cents per ounce, and the large bottle costs 2.24 divided by 32, or 7 cents per ounce, so the large bottle is cheaper by 1 cent per ounce.