Question 991163
<font face="Times New Roman" size="+2">


Hint:  350 divided by 3.5 is the sum of the two speeds. The sum of the two speeds less 20 and then divided by 2 is the speed of the slower train.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it

*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \