Multiple choice general knowledge math & puzzles 5 10 6 9 7 8 1 12 4 Reveal answer Fill a bubble to check yourself A Correct answer Explanation The sequence alternates between two patterns: the 1st, 3rd, and 5th terms (5, 6, 7) increase by 1. The 2nd and 4th terms (10, 9) decrease by 1. Following the second pattern, the next term after 7 should be 9-1=8.