Multiple choice general knowledge math & puzzles 2 6 12 20 30 _ 40 38 42 44 Reveal answer Fill a bubble to check yourself C Correct answer Explanation The sequence follows the pattern n^2 + n (or adding consecutive even numbers: +4, +6, +8, +10). The next increment is +12. 30 + 12 = 42. Other options like 40 or 38 do not follow the mathematical progression.