A 400 m wide river flows at 10 km/h. A man at point A wants to cross the river. In still water, he can row a boat at a maximum speed of 20 km/h. Point B is exactly opposite A on the other bank. If he wants to cross the river in the least possible time, how far from B will he land on the other bank?

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.