In a row of children, Rashi is fifteenth from left. If Ramesh who is twenty ninth from the right interchanges his position, Rashi becomes twenty sixth from left. How many children are there in the row?

According to question,we have
Rashi's position = 15th from the left
Ramesh's position = 29th from the right
After interchanging their positions ,
Rashi's position = 26th from left
? Total number of students = Rashi's position + Ramesh's position - 1
Total number of children in the row = 26 + 29 ? 1 = 54
As shown in figure -