Question:
There are two shipyards between A and B along the River, the
Last updated: 7/29/2022
There are two shipyards between A and B along the River, the ship trip from A to B , everyday move 600KM, from B to A, everyday move 400KM, if the ship has the roundtrip between A and B for 5 times, it would take the ship totally 5 days. Then what is the distance between A and B?