<PRE><B>Question 956884</B>
r=rate of the slower train
440miles/4hrs=110mph The combined speed of the trains is 110 mph.
r+r+5mph=110 mph
2r=105mph
r=52.5 mph ANSWER 1: The slower train was traveling 52.5 mph
r+5=57.5 ANSWER 2 The faster train was traveling 57.5 mph
CHECK
4hr(52.5mph)+4hr(57.5mph=440 miles
210 miles+230 miles=440 miles
440 miles=440 miles </PRE>