Question

Which is the better buy? 8-quart container of window cleaner for $37.04 3-gallon container of window cleaner for $47.76

Answer 1

Answer:

The better buy is;

3-gallon container of window cleaner for $47.76​.

Explanation:

We want to determine the most cost efficient buy.

-- 8-quart container of window cleaner for $37.04

Price per gallon is;

$\begin{gathered} P_1=\frac{37.04}{8\text{ quarts}}\times4\text{ quarts per gallon} \\ P_1=\text{ \ 18.52 per gallon} \end{gathered}$

--- 3-gallon container of window cleaner for $47.76​.

Price per gallon is;

$\begin{gathered} P_2=\frac{\text{ \ 47.76}}{3} \\ P_2=\text{ \ 15.92 per gallon.} \end{gathered}$

The lowest price per gallon is the most cost effective and is the better buy.

Therefore, the better buy is;

3-gallon container of window cleaner for $47.76​.