In a row where all are facing north, Pankaj is 10th from the left end and Gaurav is 11th from the right end. They interchange their positions, and Gaurav is now 5th from right. How many persons were there in the row?
1
10
2
15
3
16
4
14
In a row where all are facing north, Pankaj is 10th from the left end and Gaurav is 11th from the right end. They interchange their positions, and Gaurav is now 5th from right. How many persons were there in the row?