Question

Two trains travel for eleven hours, starting from the Same place traveling in opposite directions. One train travels at an average rate that is 15 mph faster than the other train. Find the rate of each train if they are 291 miles apart after three hours

Answer 1

If the slower train has speed x, then since distance = speed * time,
3(x + x+15) = 291
Solve for x, then get x+15