a) What is the least possible number of rows of chairs in the theatre?
b) 28 students on a school trip sit in a single row of chairs. What percentage of the seats in the row do they take up?
a) The least possible number of rows of chairs in the theatre would be 1 row, consisting of just 1 chair.
b) If 28 students sit in a single row of chairs, and assuming there are no empty chairs, they are taking up all the seats in that row. Therefore, they are occupying 100% of the seats.