In a queue of persons, facing the north direction, Pinky is 18^th from the left end and Kritika’s 18^th from the right end. Tony, who is 6^th to the right of Pinky, is 9^th to the left of Kritika in the queue. How many persons are there in the queue?

50

Tony’s Position  =  24^th from Left and 27^th from Right

Total Person  =  Starting Rank + Last Rank – 1

                    =  24 + 27 – 1

                    =  51 – 1

                    =  50