An educational institute is conducting term-end exams for Classes 5 to 10 on different floors in a building. The bottom-most step is numbered 1 and the top-most step is numbered as 6. Exams for Class 5 are being conducted on the floor above Class 6 but below the floor of Class 7. Class 8 exams are being conducted on the bottom-most floor and Class 9 exams are being conducted on the floor below Class 6. On the top-most floor, Class 10 exams are being conducted.

On which floor are Class 9 exams being conducted?