Question

A store sells 28 ounces of peanut butter for $2.24. The store also sells 32 ounces of the same

peanut butter for $2.40. Which is the better buy?

Answer 1

To find out which peanut butter is the better buy, calculate the cost per ounce of each option. The 32-ounce peanut butter at $0.075 per ounce is a better buy than the 28-ounce option at $0.08 per ounce.

Step-by-step explanation:

To determine which peanut butter option is the better buy, one must calculate the cost per ounce for each and compare them. For the 28-ounce option priced at $2.24, the cost per ounce is calculated as follows:

1. Divide the total cost by the number of ounces: $2.24 ÷ 28 ounces = $0.08 per ounce.
2. For the 32-ounce option priced at $2.40, do the same: $2.40 ÷ 32 ounces = $0.075 per ounce.

Upon comparison, the 32-ounce peanut butter option has a lower cost per ounce ($0.075) compared to the 28-ounce option ($0.08).

Therefore, the 32-ounce peanut butter is the better buy as it offers a lower cost per unit of weight.