Five people: P, Q, R, S and T 1) S is sitting second to the left of T and second to the right of R [ alt="Circular Shweta Kansal 13May20 10Q Archana Reviewed HinRev Manoj archana D5" src="//storage.googleapis.com/tb-img/production/20/05/Circular_Shweta_Kansal_13May20_10Q_Archana_Reviewed_HinRev_Manoj_archana_D5.PNG" style="width: 219px; height: 217px;"> 2) Q and S are immediate neighbours There are two possible cases: Case I: [ alt="Circular Shweta Kansal 13May20 10Q Archana Reviewed HinRev Manoj archana D6" src="//storage.googleapis.com/tb-img/production/20/05/Circular_Shweta_Kansal_13May20_10Q_Archana_Reviewed_HinRev_Manoj_archana_D6.PNG" style="width: 220px; height: 223px;"> Case II: [ alt="Circular Shweta Kansal 13May20 10Q Archana Reviewed HinRev Manoj archana D7" src="//storage.googleapis.com/tb-img/production/20/05/Circular_Shweta_Kansal_13May20_10Q_Archana_Reviewed_HinRev_Manoj_archana_D7.PNG"> 3) P and R are immediate neighbours This statement is violated in case I, so it is eliminated In case II, Q will occupy the immediate right position of S and P will occupy the immediate right position of R. Thus, the final arrangement is: [ alt="Circular Shweta Kansal 13May20 10Q Archana Reviewed HinRev Manoj archana D8" src="//storage.googleapis.com/tb-img/production/20/05/Circular_Shweta_Kansal_13May20_10Q_Archana_Reviewed_HinRev_Manoj_archana_D8.PNG" style="width: 227px; height: 219px;"> Hence, 2 people are sitting between P and Q counting from the left of P