Study the given pattern carefully and select the number that can replace the question mark (?) in it.
3 11 2
5 11 7
13 ? 18
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 29.
The logic followed here is:
In a row: 1st number × 5 - 3rd number × 2 = 2nd number
Row 1 → 3 × 5 - 2 × 2 = 11
Row 2 → 5 × 5 - 7 × 2 = 11
Row 3 → 13 × 5 - 18 × 2 = 29