Study the given pattern carefully and select the number that can replace the question mark (?) in it.
| 10 | 58 | 4 |
| 8 | 34 | 2 |
| 6 | 90 | ? |
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 12.
The logic used here is:
1st row: 10 × 4 = 40 + 18 = 58
2nd row: 8 × 2 = 16 + 18 = 34
3rd row: 6 × a + 18 = 90; a = 12