The matrix of Figure 1 is composed of odd numbers Figure 1 1 3 5 7 9 11 13 15 17 19 ………………………… 91 93 95 97 99 5. 7, 13, 15 are framed together (1) Look at the relationship between the four numbers in the box in Figure 1. Please use letters to indicate the relationship between the four numbers in such a box (2) If the sum of the four numbers framed in this way is 200, calculate the four numbers (3) Is there such four numbers whose sum is 400? Why?

The matrix of Figure 1 is composed of odd numbers Figure 1 1 3 5 7 9 11 13 15 17 19 ………………………… 91 93 95 97 99 5. 7, 13, 15 are framed together (1) Look at the relationship between the four numbers in the box in Figure 1. Please use letters to indicate the relationship between the four numbers in such a box (2) If the sum of the four numbers framed in this way is 200, calculate the four numbers (3) Is there such four numbers whose sum is 400? Why?

x,x+2,x+8,x+10
4x+20=200,x=45 45 47 53 55
4X + 20 = 400, x = 95 does not exist, transfinite