Two runners, X and Y, start from points 480 km apart and travel at constant speeds. If they move towards each other, they meet in 6 hours. If they move in the same direction, they meet in 24 hours. What is the speed of runner Y? (Assume X is the faster runner).

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.