Hi Rich, I posted the question and answer because I didn't see this question in the forum. I thought that having this question might be useful for users. Cheers, Damian Hi DamianDavila, Since you've posted an SC with an entire explanation, I'm curious about what you'd like to know that the explanati...

Here is my approach: B leaves later than A so it first needs to catch up to A, and because it is going faster than A, B will eventually overtake A. At 4:10 pm, A has covered 2/3 of what it would cover in 1 hour (40/60 minutes), so 60 x 2/3 = 40 miles. Let's do a table of the trains after every hour:...