Question 34458
Let the speed of the Local train is x mph
AT x mph, the Local train takes 50/x hours to travel 50 miles;
And the speed of the Express train is 2x mph;
The Express train takes 50/2x hours to travel 50 miles;
Hours taken by the Local train = Hours taken by the Express train + 1
=> 50/x = 25/x + 1
=> 50/x - 25/x = 1
=> 25/x = 1
=> x = 25;
So, The local train travels at 25 mph and the Express train at 50 mph.