Sort:  

For the first column: 27 - 7 = 20•For the second column: 38 - 8 = 30

See how the difference is increasing by 10 each time?

So, for the third column, the difference should be 30 + 10 = 40.

That means: ? - 9 = 40•So, ? = 9 + 40 = 49!

The missing number is 51.

For the first column: (7 * 4) - 1 = 28 - 1 = 27

For the second column: (8 * 5) - 2 = 40 - 2 = 38

For the third column: (9 * 6) - 3 = 54 - 3 = 51

We can assume the pattern adds +8 each time
So next difference = 23 + 8 = 31

Now:

3 + 6 + 9 = 18

18 + 31 = 49

✅ Final answer is: 49