, 2025

When Arturo finishes the race, he is $200 \text{ m}$ ahead of Morgan and $290 \text{ m}$ ahead of Henri.

This means that Morgan runs $2000 $\text{}$ m} -
200 $\text{}$ m}=1800 $\text{}$ m}$ in the same amount of time that it
takes Henri to run $2000 $\text{}$ m} - 290
$\text{}$ m}=1710 $\text{}$ m}$.

If they each continue at their same speeds, Morgan runs the last $\dfrac{1800 \text{ m}}{9}=200 \text{ m}$
of the race in the same amount of time that Henri runs $\text{1710}$ m}}{9}=190 $\text{}$
m}$.

Therefore, Morgan completes the $1800 $\text{}$
m} + 200 $\text{}$ m}=2000 $\text{}$ m}$ race in the same amount of
time that Henri runs $1710 $\text{}$ m} + 190
$\text{}$ m}=1900 $\text{}$ m}$. Morgan finishes the race 100 m ahead
of Henri.