Multiple choice general knowledge math & puzzles What will be the next in the sequence 2 , 6 , 12 , 20 , 30 , 42 , 56 ? 64 68 76 72 Reveal answer Fill a bubble to check yourself D Correct answer Explanation The series follows the pattern n(n+1) for n=1, 2, 3, 4, 5, 6, 7. The terms are 1*2, 2*3, 3*4, 4*5, 5*6, 6*7, 7*8. The next term is 8*9 = 72.