In a row of Students, if position of Summer from left side of a row is 18th and position of Tanisha from right side of a row is 22^nd and only 4 person is sitting in middle of Summer and Tanisha. What is the minimum number of persons that can be seated in this row?

Given,

Position of Tanisha from right side of a row is 22nd

Position of Summer from left side of a row is 18th

Only 4 person is sitting in middle of Summer and Tanisha.

Hence, there will be overlapping,

Total number of persons = (Sum of positions of both persons) – (Number of persons in between them + 2).

Minimum no. of persons = (22 + 18) – (4 + 2)

Minimum no. of persons = 40 - 6

Minimum no. of persons = 34