GATE EC 2019 Set 1 Q10 — General Aptitude

Five people $P,Q,R,S$ and $T$ work in a bank. $P$ and $Q$ don't like each other but have to share an
office till $T$ gets a promotion and moves to the big office next to the garden $R,$ who is currently 
sharing an office with $T$ wants to move to the adjacent office with $S,$ the handsome new intern. 
Given the floor plan, what is the current location of $Q, R$ and $T?$
(O=Office, WR=Washroom)