The Group of students is playing a game, standing in a row, ‘A’ is forth from left and ‘B’ is third from right. If position of ‘A’ and ‘B’ are interchanged ‘B’ is Seventh from right, then what is total strength of Students?
1
20
2
15
3
10
4
5
The Group of students is playing a game, standing in a row, ‘A’ is forth from left and ‘B’ is third from right. If position of ‘A’ and ‘B’ are interchanged ‘B’ is Seventh from right, then what is total strength of Students?