Question

One package of crispy oats cost 63 cents for 7.5 Oz . One package of total cost 1.39 cent for 18.75 Oz . What is the price of 1 Oz for the smaller package ? What is the price of 1 Oz for the larger package ?

Answer 1

8.4 cents/oz; 7.4 cents/oz

Explanation:

The price of one ounce (the unit cost) is the total cost divided by the number of ounces.

For the smaller package

`\text{Unit cost} =\frac{\text{63 cents}}{\text{7.5 oz}} = \textbf{{8.4 cents/oz}}`

For the larger package

`\$1.39 = \text{139 cents}\\\\\text{Unit cost} =\frac{\text{139 cents}}{\text{18.75 oz}} = \textbf{7.4 cents/oz}}`