Study the given matrix carefully and select the number from among the given options that can replace the question mark (?) in it
| 7 | 9 | 5 |
| 3 | 8 | ? |
| 28 | 81 | 50 |
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 9.
The logic used here is:
Row 1: (7 × 3) + 7 = 21 + 7 = 28
Row 2: (9 × 8) + 9 = 72 + 9 = 81
Row 3: (5 × a) + 5 = 50 ⇒ a = 9