A bus crosses a cyclist moving in the same direction along a road at 12 km/h. The cyclist could see the bus for 4 minutes. Find the speed of the bus, if at the time of disappearance of the bus, the distance between the bus and the cyclist was 2.4 km.

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.