Question

Tom needs to clean 50 square ft of carpet. One bottle of will clean 1 1/2 square ft of carpet. how many bottles will he need

Answer 1

Total is 50 sq ft.

one bottle will clear 1 1/2, sqft .

Let x be the number of bottles needed to clean 50 sqft.

So taking the proportion,

$\begin{gathered} \frac{1}{1\frac{1}{2}}=\frac{x}{50} \\ \frac{1}{\frac{3}{2}}=\frac{x}{50} \\ 50=\frac{3}{2}x \\ x=\frac{2\times50}{3}=33.33 \end{gathered}$

Therefore the number of bottles needed is 34