The 20 students in the ticket committee had to find out how many seats t here were in the school auditorium. There were 25 rows of seats, with 40 seats in each row. To find out how many seats there were in the auditorium, you should find the answer to
1. 40 x 25
2. 20 x (40 + 25)
3. 20 x 40 x 25
4. 40 + 25