Mr. Lee can paint 20 chairs in t hours. He uses 3 liters of paint for every 12 chairs that he painted. How do you find, in terms of t, the number of chairs that he can paint in 3 hours?

Aug 27, 2017

See a solution process below:

Explanation:

We can write this equation:

$t \text{ hours" = 20" chairs}$

We can now multiply each side of the equation by $\textcolor{red}{3}$ to find the number of chairs Mr. Lee can paint in 3 hours if he paints them continuously at the same rate.

$\textcolor{red}{3} \times t \text{ hours" = color(red)(3) xx 20" chairs}$

$3 t \text{ hours" = 60" chairs}$

Mr. Lee can paint 60 chairs in $3 t$ hours.