P, Q, R, S and T are five speakers who have to speak on a particular day, not necessarily in the same order. R is neither the first nor the last speaker. There are three speakers after S and three speakers ahead of T. If P speaks after Q, then who is the last speaker to speak?
Answer is : P
P=Q+1 Q=P-1 R=2,3,4 S=1,2 T=4,5
S,R,Q,P,T
T is the last
T is the last speaker.
The order is SQPRT
T is the last speaker.