In a Row of children facing North, Ritesh is 12th from the left end. Sudhir who is 22nd form the right end is fourth to the right of Ritesh. Total how many children are there in the row?

37

Ritesh left side position is 12th

Sudhir is 4th right to Sudhir so Sudhir's position from left is 16th.

Total = Left Rank + Right Rank - 1

Total = 16 + 22 - 01

Total = 37