Multiple choice general knowledge math & puzzles 2,6,12,20,30,__ 36 38 42 46 Reveal answer Fill a bubble to check yourself C Correct answer Explanation The series follows the pattern n^2 + n or n(n+1). 1*2=2, 2*3=6, 3*4=12, 4*5=20, 5*6=30. The next term is 6*7=42. Alternatively, the differences are 4, 6, 8, 10, so the next difference is 12 (30+12=42).