when two trains were running in the same direction at 90 km/hr and 70 km/hr then the fastest train passed a man sitting in the slow train in 36 seconds. What is the length of the fastest train?
Ans I found as per answer provided in the book as 200 meters.
i.e (90-70)36(5/18) = 200 meters
then what will be the speed of slower train?
As question never tells us that both are of same length.. So how to calculate?