Kevin has a spinner that has 10 equal sections and 2 sections of each color: red, blue, green, yellow, and purple. Kevin spins the spinner 180 times. Kevin determines about how many times the spinner will land on red or green, and his work is shown below.



$\begin{aligned}

P(\text{red or green}) &= \frac{\text{Number of red or green sections}}{\text{Total number of sections}} \bullet \text{Number of spins} \\

&= \frac{2}{10}(180) \\

&= 36

\end{aligned}$



What mistake did Kevin make, if any?

AKevin has the formula reversed; it should be the total number of sections over the number of red or green sections.

BKevin should have used a different numerator for the number of red or green sections.

CKevin should multiply by a different number of spins.

DKevin calculated the prediction correctly and did not make any mistakes.