Multiple choice general knowledge math & puzzles 2 8 7 10 12 12 ? 17 12 13 16 Reveal answer Fill a bubble to check yourself A Correct answer Explanation This is an alternating sequence. Sequence 1: 2, 7, 12 (+5). Sequence 2: 8, 10, 12 (+2). The next number belongs to Sequence 1: 12 + 5 = 17. Distractors like 13 or 16 do not follow the established patterns.