Which one will replace the question mark ?
2023
Which one will replace the question mark ?

- A.
12
- B.
13
- C.
11
- D.
10
Attempted by 35 students.
Show answer & explanation
Correct answer: C
Answer: Option C Explanation: (4 x 8) + 1 = 33 (5 x 9) + 1 = 46 Similarly, for the middle column: (7 x ?) + 1 = 78. Therefore, 7 x ? = 77, so the missing number is 11.