Two stations, A and B, are 1570 km apart. One train starts from A at 7:00 am and travels towards B at 80 km/h. Another train starts from B at 9:00 am and travels towards A at a speed of 108 km/h. At what time will the two trains meet?

Ramesh covers 56 part of the total distance by bus and the remaining 36 km by car. What is the total distance of his journey?

A person covers a distance of L km in 12 hours. If he increases his speed by 10 m/s, he covers the same distance in 8 hours. Which of the following statements is/are correct? I. The value of L is 760 km. II. The original speed of the person is 72 km/h.