Train A leaves from a platform that you probably never heard of traveling at 60 mph. Train B leaves one hour later from the same platform going 85 mph. How long will it take train B to catch up with train A, and which is going to an M83 concert?
Sebastian, Nico, Julia and Rose have to wait in a long line at the Apple store. There is only one iPhone out for display. Everyone else is also in line next to the iPhone. If Rose wants to mess with the iPhone, Julia wants to fondle Nico, and Sebastian doesn’t want to stand anywhere near Julia because they used to date, how will they position themselves?