Question

A Japanese bullet train leaves the station tra traveling west at 164 mph. A pigeon which was resting on the train is startled and starts flying east at 40 mph. After two hours, how far apart are the pigeon and the train?

Answer 1

in 2 hours the train has gone 328 mi, while the bird has gone 80 mi in the opposite direction.

separation is thus 328+80 = 408 mi.
or, 2(164+40) = 2(204) = 408