The distance from Springville to Franklin is 400 Km. Travelling at 120 Km/h from Springville to Franklin, Teresa arrives two hours faster than her return trip, which took five hours. What speed was Teresa travelling on the return trip?	Choose the correct choice from the following.
A) 50 Km/h  B) 55 Km/h  C) 62 Km/h  D) 72 Km/h  E) 80 Km/h
distance=speed*time   d1=s1t1   d2=s2t2   The distance from point A to point B is the same for each trip so,   d1=d2 and   t1=3   t2=5   thus,   s1t1=s2t2   120(3)=s2(5)   s2=72 Km/h   Answer: 72 Km/h
<result>D</result>
The distance from Springville to Franklin is 400 Km. Travelling at 120 Km/h from Springville to Franklin, Teresa arrives two hours faster than her return trip, which took five hours. What speed was Teresa travelling on the return trip?