A train moving at an average speed of 40 km/h reaches its destination on time. When its average speed reduces to 35 km/h, it reaches its destination 15 minutes late. Find the total distance of the journey.

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.