Question
A freight train travels 260 km in the same time a passenger train travels 320 km. If the passenger train averages 15km/hour faster than the freight train, what is the average speed of the freight?
Answers
time = t
vf t = 260
vp t = 320
so
260/vf = 320/(vf+15)
320 vf = 260 vf +260(15)
60 vf = 390
3 vf = 39
vf = 13 km/hour
vf t = 260
vp t = 320
so
260/vf = 320/(vf+15)
320 vf = 260 vf +260(15)
60 vf = 390
3 vf = 39
vf = 13 km/hour
Related Questions
1. A Passenger train's speed is 60mi/h and a freight train's speed is 40mi/h. The passenger train t...
a passenger train's speed is 60mi/h, and a freight train's speed is 40mi/h .The passenger train trav...
Speed of passenger train is 6mph faster than the freight train. The passenger train travels 260 mile...
the speed of a passenger train is 18mph faster than the speed of a freight train. The passenger trai...