Complete each of the following magic squares :
(i)
| 6 | 7 | ........ |
| .......... | 5 | 9 |
| 8 | ......... | 4 |
(ii)
| 4 | ...... | 8 |
| ........ | 7 | ...... |
| ......... | ........ | 10 |
(iii)
| 16 | 2 | ....... |
| ........ | 10 | ....... |
| ....... | ........... | 4 |
