Kumar walked 5 m north, took a left turn and walked 10 m, then took a right turn and walked 20 m, and again took a right turn and walked 10 m. How far is he from the starting point?

He is 25 m from the starting point.

North 5 gives (0,5).

A left turn faces west; 10 m gives (-10,5).

A right turn faces north; 20 m gives (-10,25).

A right turn faces east; 10 m gives (0,25).

The distance from (0,25) to the origin is 25 m.