$3+8-7+6=10$ 
Patrick got into a lift. He went down six floors, up seven floors and then down eight floors. He was finally on the third floor. Which floor did Patrick get into the lift? 
Options:
(A) $$3^{rd}$$ 
(B) $$4^{th}$$ 
(C) $$10^{th}$$ 
(D) $$11^{th}$$ 