Train A leaves station M at 6:15 AM and reaches station N at 3:15 PM on the same day. Train B leaves station N at 8:15 AM and reaches station M at 2:15 PM on the same day. Find the time when Train A and Train B 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.