Question

A 20 ounce package of frozen peas is priced at 99 cent. Give the unit price in cents per ounce.

Answer 1

If the price of the package of 20 ounces is 99 cents, we can apply the rule of three to calculate the price per ounce:

`\begin{gathered} 20oz\longrightarrow99c \\ 1oz\longrightarrow1\cdot(99)/(20)=4.95c \end{gathered}`

Answer: the unit price is 4.95 per ounce.