Multiple choice general knowledge math & puzzles 1 , 8 , 28 , 56 , _ What would come next in the blanks? 68 78 70 98 Reveal answer Fill a bubble to check yourself C Correct answer Explanation The sequence follows a pattern: 1 + 7 = 8, 8 + 20 = 28, 28 + 28 = 56, 56 + 14 = 70. The differences are: 7, 20, 28, 14. While not perfectly regular, 70 is the logical next term as 56 + 14 = 70 fits the pattern.