Answer: 4 and 1-sixth times
Step-by-step explanation:
Given: The number of times Tomiko runs around football field = [tex]3+\dfrac{1}{6}=\dfrac{19}{6}[/tex]
The number of times Brianna runs around football field = [tex]2+\dfrac{2}{3}=\dfrac{8}{3}[/tex]
Total number of times, they had to run = 10
Then, the number of times the third person had to run will be :-
[tex]10-\dfrac{19}{6}-\dfrac{8}{3}\\\\=\dfrac{60-19-16}{6}\\\\=\dfrac{25}{6}\\\\=4\dfrac{1}{6}[/tex]
Hence, the third person has to run 4 and 1-sixth times to finish the race.
