Multiple choice general knowledge math & puzzles 2,4,7,10,13,16,__ 17 18 19 21 Reveal answer Fill a bubble to check yourself C Correct answer Explanation The pattern increases by 2 once, then by 3 repeatedly: 2+2=4, then 4+3=7, 7+3=10, 10+3=13, 13+3=16, so 16+3=19.