Question

an Express train takes 1 hour less than a passenger train to travel 168 km between two stations(stoppage time between two stations is not considered). if the average speed of the express train is 14 km per hour more than the passenger train .find the average speeds of two trains

Answer 1

Let the time taken by Express train be t time
we know that :-
$v = \frac{d}{t}$
so t = 12 hrs
now the time taken by passenger train is 13 hrs
so average v= 12.9km/hr