Two Unit One Class

Force between two unit pole strength placed at a distance of one metre is

In a class tournament where the participants were to play one game with one another, two of the class players fell ill, having played 3 games each. If the total number of games played is 24, then the number of participants at the beginning was

Students of a class are made to stand in rows. If one student is extra in a row, there would be two rows less. If one student is less in a row, there would be three rows more. What is the number of students in the class ?