To reach the end he needs_____ courage.

Raj is standing in the middle of a square field. He starts walking diagonally to North-East. Then he turns right and reaches the far end of the field. Then he turns right and starts walking. In the midway he again turns right and starts walking. In halfway, he turns to his left and reaches a new far end. In what direction is Raj now?

A person moves on a semi - circular track of radius radius 42 m during a morning walk. He starts at one end of the track and reaches the other end. Find the distance covered and the displacment of the person .

An old man moves on a semi-circular track of radius 7 km during a morning walk. If he starts at one end of the truck and reaches at the other end, the distance and displacement of the person are :

When Rahul walks up a stationary escalator,then he takes 20s to reach the top.While when he walks up a moving escalator,he takes 10s to reach the top.The time taken by him to reach the top when stand still on the moving escalator is?

Deepak walks from point P 15 m to the east to reach point Q. then he takes right turn and walks for 20 m to reach point R. now he takes a left turn and walks for 15m to reach point S. now he takes a left turn and walks for 10 m to reach point T. then he takes a right turn and walks for 5 m to reach point V. now he takes a left turn and walks for 10m to reach point W. Which of the following points are not in straight line ?