SBI PO 21 June 2015 Paper

A person starts walking from his office towards a party hall. He walks for 30m towards East. He takes a 90° right turn and walks for 15m. He again takes a 90° right turn, and walks for another 20m. He then walks for 25m after taking a 90° left turn. Turining 90° towards his right he walks for 10m to reach the party hall. How far and in which direction is the party hall from his office ?