Multiple choice general knowledge math & puzzles 1, 11, 21, 1211, ? 111221 1122111 13112 21221 Reveal answer Fill a bubble to check yourself A Correct answer Explanation This is a 'look-and-say' sequence. Each term describes the digits of the previous term. '1211' consists of one '1', one '2', and two '1's, which translates to '111221'. The distractors do not follow this descriptive logic.