Answer:
He lead the race for 1.5 miles
Step-by-step explanation:
4 tenths is equal to 4/10 = 0.4
0.4*2.5 miles = 1 mile
Lenox took the lead after the first mile of the race.
Se he lead the race for
2.5 miles - 1 mile = 1.5 miles
Which is equal to 60% of the whole trajectory.
