Correct option is D
The question mark (?) in the following pattern will be:
Logic: Digits increase from right to left in the sequence 21, 43, 65, 87, 109, 1211. in each boxes.
Bottom row: 2 ← 1, 4 ← 3, 6 ← 5
Middle row: 8 ← 7, 10 ← 9(following the sequence)
Top row: 12 ← 11
Therefore, the missing number is 109.
Middle row: 8 ← 7, 10 ← 9(following the sequence)
Top row: 12 ← 11
Therefore, the missing number is 109.
Thus, the correct option is (d) 109







