Question 1127868
B goes x mph
A goes 1.586x mph
In 1 hour, their combined speed is 2.586 x
In 1/2 hour, their combined speed is 1.293x, and that equals 556 miles
x=556/1.293=430 mph B
1.586x=682 mph A
In one half hour, A goes 341 miles and B goes 215 miles, and that distance covers everything between the two depots.