Number Sum
The following grid of size 5x5 is partially complete with whole numbers from 1 to 7.
The sum of each row and column is shown on the edges of the grid.
Fill in the missing numbers to complete the grid.
| 28 | 25 | 29 | 17 | 21 | |
| 20 | 3 | 7 | 1 | ||
| 29 | 7 | 2 | |||
| 30 | |||||
| 19 | 6 | 1 | 5 | 2 | |
| 22 | 5 |