Question

One bag of pretzels costs three dollars. Five bags of pretzels costs $10. Which has the lower unit price?

Answer 1

Buying the five bags results in a lower unit cost ($2 per bag).

Explanation:

The unit price of an item is the amount each thing costs.

For instance, one bag of pretzels costs $3. And so we can say that it costs $3 per bag - that is the unit cost.

When buying 5 bags of pretzels, in total it costs $10. Each bag, therefore, is:

`($10)/5=$2` or $2 per bag.

Buying the five bags results in a lower unit cost.