Multiple choice general knowledge math & puzzles Look at this series: 3, 4, 7, 8, 11, 12, ... What number should come next? 7 10 14 15 Reveal answer Fill a bubble to check yourself D Correct answer Explanation This series alternates between two patterns: add 1, then add 3. Starting from 3: 3+1=4, 4+3=7, 7+1=8, 8+3=11, 11+1=12. Following this pattern, add 3 to 12 to get 15. AI explanation AI 1 The series alternates adding 1 and then 3: 3+1=4, 4+3=7, 7+1=8, 8+3=11, 11+1=12, so the next step adds 3 to get 12+3=15. Thanks Wrong explanation