Posted by Im on .
A passenger train travelled at an average speed of 72 km/h. A man on the passenger train observed a goods train, which was travelling at a speed of 54 km/h, in the oncoming direction. If the goods train passed him in 10 seconds, find the length of the goods train.
Is it possible to find the length of the passenger train as well in this situation?

math 
Billy,
u divide the two speeds and convert that to the right time.