Two trains, each having a speed of 34 km/h, are headed at each other on the same straight track.

Two trains, each having a speed of 34 km/h, are headed at each other on the same straight track. A bird that can fly 68 km/h flies off the front of one train when they are 68 km apart and heads directly for the other train. On reaching the other train it flies directly back […]

Two trains, each having a speed of 34 km/h, are headed at each other on the same straight track. Read More ยป