Question

A certain number of people are standing in a straight line, and all of them
are facing north. Arunima is 19th from the right end of the line, and Arun is
at the 15th position from the left end of the line. Both, Arunima and Arun
interchange their positions, after which Kritika who was 24th from the left
end is now at the 5th position to the left of Arun's new position. How many
people are there in the line in total?​

Answer 1

Answer:

It's a little tricky and time taking question. I also appreciate the one who posted this question. I need to brush my brain hard to answer this

Answer 2

Seating Arrangement

Arun is at $15th$ position from the left end.

Arunima is $19th$ position from the right end .

On combining these statements, we get, the position shown in image attached.

New position is also represented after interchange of positions takes place.

The position of Kritika is $24 th$ from left end and $5th$ left to Arun's new position.

So, $Arun's\ new \ position \ from \ left\ end = Kritika's\ position +5=24+5=29$

Total number of people in the row $=29+19-1=47$

Hence total number of people in the line is 47.