The distance between cities A and B is 80 km. Two trains left these cities at the same time

| January 4, 2021 | education

The distance between cities A and B is 80 km. Two trains left these cities at the same time, one to the west and the other to the east. The speed of a train going to the west is 70 km / h, and the speed of a train going to the east is 65 km / h. At what distance from each other will the trains be 3 hours after the start of movement?

1. Calculate how many kilometers a train traveling westward has traveled in three hours:
70 x 3 = 210 kilometers.
2. We calculate how many kilometers the train traveled eastward in three hours:
65 x 3 = 195 kilometers.
3. We calculate what distance separates the trains from each other:
210 + 195 + 80 = 485 kilometers.
Answer: the distance between trains three hours after departure from the starting stations is 485 kilometers.



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