Question 95
The numbers $1, 2, \dots, 25$ are written in the cells of a $5 \times 5$ grid as shown below.
Is it possible to make all the numbers in the grid equal by performing a series of operations, where each operation consists of selecting either a row or a column and increasing all the numbers in that row or column by 1?
Is it possible to make all the numbers in the grid equal by performing a series of operations, where each operation consists of selecting either a row or a column and increasing all the numbers in that row or column by 1?