Study the given pattern carefully and select the number that can replace the question mark (?) in it.
| 60 | 152 | 161 |
| 14 | 18 | 17 |
| 15 | 19 | ? |
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 23.
The logic used here is:
Column 1: 15 × (14 - 10) = 15 × 4 = 60
Column 2: 19 × (18 - 10) = 19 × 8 = 152
Column 3: a × (17 - 10) = a × 7 = 161 ⇒ a = 23