In a row of 25 people facing north, Keshav is 7th from the extreme right end. If Teja sits 5th to the left of Keshav, what is Teja's position from the extreme left end of the line?

In a row of 50 persons, Gaurav was 25th from the left and Harsh was 15th from the right end of the row. If there were as many people to the left of Isha as the number of people between Gaurav and Harsh, what was Isha's position from the right end of the row?

In a row of children, Bali is seventh from the left and Moti is fourth from the right. When Bali and Moti exchange positions, Bali becomes fifteenth from the left. What will be Moti's position from the right?