Two trains starting at the same time from two stations 300 km apart and traveling in opposite directions cross each other at a distance of 180 km from one of the stations. What is the ratio of the speed of the faster train to that of the slower train?

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.