In triangle PQR A is the point of intersection of all the altitudes and B is the point of intersecti...........

Quantitative Aptitude (CGL) Coordinate Geometry

In triangle PQR, A is the point of intersection of all the altitudes and B is the point of intersection of all the angle bisectors of the triangle. If ∠PBR = 105°, then what is the value of ∠PAR (in degrees)?