Answer:
4 hours
Step-by-step explanation:
d = r * t
t = t for the second car. This is the time to catch the first car.
t = t + 2 for the first car
r = 50 km/h for the first car
r = 75 miles per hour.
The trick to this question is realizing that both cars have to go the same distance.
50*(t + 2) = 75 * t Remove the brackets
50 t + 100 = 75t Subtract 50t from both sides
100 = 75t - 50 t
100 = 25t Divide by 25
100/25 = t
t = 4 hours.
What this is telling you is that the faster car will take 4 hours to catch the slower one.
