The question given below can be answered using one of the statements given in the options. Find the correct answer which can answer the question: Seven persons N, O, P, Q, R, S and T are sitting in a straight row facing north but not necessarily in the same order. Who sits 2nd to the left of O?

From data in option (a) we get Q sits 2nd to the left of O. Case I: N sits to the right of Q. _____  ____  _____ Q _____ O  N Case II: N sits to the left of Q: N _____  ____    Q ____  O _____ From data in option (b), N sits 2nd to the left or 2nd to the right of P. Case I: N sits 2nd to the left of P: R _____ N   Q  P   _____  ____  Case II: N sits 2nd to the right of P: R _____  ____    Q P  ____ N From data in option (c), R sits immediate left of N. S ___ Q ___  R N Data in option (d), N sits to the left or to the right of Q. Case I: N sits to the left of Q: N  ___ T   Q _____  ____    _____ Case II: N sits to the right of Q: _____  ____    T  Q   _____  ____   N Hence, option a.