A 24 ounce box of cereal costs $4.80 and a 36 ounce box costs $6.84. How much less does the larger box cost per ounce?

Correct answer to question 8 (Arithmetic Reasoning): 1 cent

Method

Reduce both boxes to a price per ounce before comparing. The small box costs 4.80 divided by 24, or 20 cents per ounce, and the large box costs 6.84 divided by 36, or 19 cents per ounce. The difference is 1 cent.