Question

You buy 12 slick tires for the race car at 2,400 dollars. Find the unit rate.

• A. 200 dollars
• B. 100 dollars
• C. 150 dollars
• D. 250 dollars

Answer 1

The correct option is A 200 dollars

Cost of 12 slick tires = 2,400 dollars

Unit rate (cost of 1 tire) = $\frac{2400}{12}$


$$\begin{array}{c}200\\ 122400\\ -\underset{–}{24}-2\\ 000\\ -\underset{–}{0}0\\ 000\\ -\underset{–}{0}0\\ 0\end{array}$$
= 200

Hence, the cost of 1 slick tire = 200 dollars