Directions (1-3): Read the following questions and answer the question given below:
There are two persons KP and PK, both study in the same school and started at the same time from their respective home towards their school. KP started towards north direction and after moving 2km he turned right and moved 3km further to reach point C from where his school is 4km away in the north east direction. PK started towards west direction and after moving 3km, he turned left and moved 4km further to reach a point R which is 4km towards north-west direction from his school. Point R and C in a straight line.