Table 1 consists of numbers from 1 to 72. Rael and Mark are given a plastic frame that covers exactly 9 squares of Table 1 with the centre square covered.
- Rael puts the frame on the 9 squares shown in Figure 1. What is the average of the 8 numbers that can be seen in the frame?
- Mark puts the frame on some other 9 squares. The sum of the 8 numbers that can be seen in the frame is 440. What is the largest number that can be seen in the frame?