Chapter 5, Problem 20AA

To determine

The per unit price of each product.

Explanation of Solution

Per unit price can be calculated by dividing the price with the total quantity.

  $\text{Per unit price =}\frac{\text{Total amount}}{\text{Total quantity}}$

Product	Size or quantity	Price	Price per unit
Milk (national brand)	½ gallon (64 oz.)	$1.97	$\frac{1.97}{64}=\$0.031\text{ per oz}\text{.}$
Milk (store brand)	1 gallon (128 oz.)	$3.15	$\frac{3.15}{128}=\$0.025\text{ per oz}\text{.}$
Laundry detergent x	70 oz. (40 loads)	$6.99	$\frac{6.99}{40}=\$0.1747\text{ per oz}\text{.}$
Laundry detergent x	210 oz. (120 loads)	$15.98	$\frac{15.98}{120}=\$0.133\text{ per oz}\text{.}$