A booth at the farmer’s market has fresh goat cheese in three sizes of containers. The big container is 30 ounces and costs $9.00. The medium container is 15 ounces and costs $4.95. The small container is 8 ounces and costs $2.00. What size is the best buy? Justify your reasoning.
To determine which size is the best buy, we need to calculate the price per ounce for each container size and compare them.
First, let's calculate the price per ounce for each container:
- Big container: $9.00 / 30 ounces = $0.30 per ounce
- Medium container: $4.95 / 15 ounces = $0.33 per ounce
- Small container: $2.00 / 8 ounces = $0.25 per ounce
Now, let's compare the prices per ounce:
- Big container: $0.30 per ounce
- Medium container: $0.33 per ounce
- Small container: $0.25 per ounce
Based on the price per ounce, the small container is the best buy at $0.25 per ounce. It is the cheapest option among the three sizes.
To compare different products or sizes, it's helpful to calculate the price per unit, which in this case is the price per ounce, pound, or any other applicable unit. This allows for a fair and accurate comparison, regardless of the size or quantity being sold.