Problema Solution
Anita and Tionna were both driving the same route from college to their hometown.
Anita left an hour before Tionna. Anita drove at an average speed of 55 miles per hour,
and Tionna averaged 65 miles per hour.
After how many hours did Tionna catch up with Anita?
Answer provided by our tutors
Let
v1 = 55 mph Anita's speed
v2 = 65 mph Tionna's speed
t = Anita's time
t - 1 = Tionna's time (the hours that Tionna needs to catch up with Anita)
Since distance=speed*time and they both traveled the same distance we have:
v1t = v2(t - 1)
55t = 65(t - 1)
........
click here to see the equation solved for t
........
t = 6.5 hr
t - 1 = 6.5 - 1 = 5.5 hr
Tionna needs 5.5 hours to catch up with Anita.