Multiple choice general knowledge math & puzzles 2, 5, 10, 17, 26, 37, 50, 64 50 26 37 64 Reveal answer Fill a bubble to check yourself D Correct answer Explanation The pattern is n² + 1 where n = 1,2,3,...: 1²+1=2, 2²+1=5, 3²+1=10, 4²+1=17, 5²+1=26, 6²+1=37, 7²+1=50. The 8th term should be 8²+1=65, not 64. Therefore 64 is the wrong number in the series.