SBI PO 21 June 2015 Paper

Point A is 40m to the north of point B. Point C is 20m to the west of point A. Point D is 30m to the south of point C. Point E is exactly midway between points D and F in such a manner that Point D, E and F form a horizontal straight line of 40m. Point F is to the east of point D. Point G is 30m to the north of point F. How far and in which direction is point G from point A ?