SOLUTION: A car and a train leave station A at the same time for station B, 300 miles away. If the speed of the car averages twice the speed of the train and the car arrives 7.5 hours befor

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: A car and a train leave station A at the same time for station B, 300 miles away. If the speed of the car averages twice the speed of the train and the car arrives 7.5 hours befor      Log On

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Question 130923: A car and a train leave station A at the same time for station B, 300 miles away. If the speed of the car averages twice the speed of the train and the car arrives 7.5 hours before the train, find the speed of the car and the speed of the train in mph.

Answer by seng0111(2) About Me  (Show Source):
You can put this solution on YOUR website!
let speed of car=C , speed of train=T (in mph)
given that C=2T
from A to B is 300miles=482803.2meter
speed of car= distance traveled(meter)/time(hour)
= 482803.2/7.5
= 64373.76mph
from C=2T, T=C/2
=64373.2/2
=32186.88mph
the speed of car and train travel from A to B are 64373.76mph and 32186.88mph