First, notice that he is placing 3 markers which means that he will be dividing the race into 3 parts. Thus, we can just divide the total distance of the race by 3 to find the distance to find the distance between each marker.
Let's do this:
[tex]\dfrac{4 \frac{1}{2}}{3}[/tex]
[tex]\dfrac{4 + \frac{1}{2}}{3}[/tex]
[tex]\dfrac{4}{3} + \dfrac{\frac{1}{2}}{3}[/tex]
[tex]\dfrac{4}{3} + \dfrac{1}{6}[/tex]
[tex]\dfrac{8 + 1}{6}[/tex]
[tex]\dfrac{9}{6} = \dfrac{3 \cdot 3}{3 \cdot 2} = \dfrac{3}{2}[/tex]
Our answer is 3/2, or Choice B.
