Study the given pattern carefully and select the number that can replace the question mark (?) in it.
| 3 | 13 | 4 |
| 6 | 67 | 31 |
| 5 | ? | 20 |
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 45.
The logic used here is:
Row 1: (3)2 + 4 = 13
Row 2: (6)2 + 31 = 67
Row 3: (5)2 + 20 = 45