Question

15. If position of A from left side of a row is 15th and position of B from right side of a row is 19th and only
1 person is sitting in middle of A & B. Find the minimum number of persons that can be seated in this row?​

Answer 1

Answer:

of persons in a row then it is always a case of overlapping i.e. given positions of persons from either sides overlap each other. E.g. If position of A from left side of a row is 15th and position of B from right side of a row is 19th and only 1 person is sitting in middle of A & B.

Answer 2

Given,

Position of A from left side of a row $\[ = 15th\]$

Position of B  from right side of a row $\[ = 19th\]$

Number of person between A and B $\[ = 1\]$

Solution,

Calculate the minimum number of persons seated in a row.

Add both A and B position and 1 more. Then subtract 2 because it is asked to calculate minimum persons.

$\[\begin{array}{l} = 15 + 1 + 19 - 2\\ = 33\end{array}\]$

Hence minimum 33 persons seated in a row.