Which of the following four options will replace the question mark (?) in the following series?
12, 36, ?, 102, 100, 300
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 34.
Given series: 12, 36, ?, 102, 100, 300
Logic: ×3, and -2 alternatively
12 × 3 = 36; 36 - 2 = 34; 34 × 3 = 102; 102 - 2 = 100; 100 × 3 = 300