Solution:
The cost of 64-ounce bottle is
[tex]\text{ \$}3.20[/tex]The cost of a 120-ounce bottle is
[tex]\text{ \$}4.80[/tex]Step 1:
The cost per ounce for the 64-ounce bottle will be calculated below as
[tex]\begin{gathered} =\frac{3.20}{64} \\ =0.05 \end{gathered}[/tex]Step 2:
The cost per ounce of the 120-ounce bottle will be calculated below as
[tex]\begin{gathered} =\frac{4.80}{120} \\ =0.04 \end{gathered}[/tex]The difference in the price per ounce is
[tex]\begin{gathered} =0.05-0.04 \\ =0.01 \end{gathered}[/tex]Hence,
The final answer is
It is a better buy to buy the 120-ounce bottle. You will save 0.01
OPTION D is the right answer
