Correct option is B
Given: 15, 17, 37, 115, ?
Logic: Series follow the pattern, as first multiply by 1, 2, 3, 4 and simultaneously add +2, +3, +4,+5
Explanation:
15×1+2=17
17×2+3=37
37×3+4=115
Similarly,
115×4+5=465
So, ? is replaced by 465.
Thus, Option B is the correct answer.