$12$ chairs were arranged with $3$ chairs in each row. Later, $8$ more chairs were added. Find the number of chairs in each row such that the total number of rows remains the same.

Q. In a conference hall, 2704 chairs are arranged in a way such that each row contains as many chairs as the number of rows. Find the number of rows and the number of chairs in each row.

Q.

In a hall, 225 chairs are arranged in such a way that the number of rows is equal to the number of columns. If one more row and column of chairs is added, find the new number of chairs in the hall.

Q. There are 2 rows with 8 chairs in each. What is the total number of chairs?

Q. There are a certain number of chairs inside the hall. If the chairs are arranged 5 chairs per row, 7 chairs per row, and 8 chairs per row then 3, 2 and 5 chairs remain respectively. It is known that there are more than 600 chairs and less than 700 chairs inside the hall. Find the number of chairs remaining if the chairs are arranged 13 chairs per row.