Study the given pattern carefully and select the number that can replace the question mark (?) in it.
| 12 | 34 | 110 |
| 6 | 13 | 35 |
| 9 | ? | 60 |
1
23
2
18
3
19
4
21
Study the given pattern carefully and select the number that can replace the question mark (?) in it.
| 12 | 34 | 110 |
| 6 | 13 | 35 |
| 9 | ? | 60 |