Multiple choice What will come in place of question mark? 1, 2, 3, 6, 7, 14, 15, 30, ? 31 60 45 35 37 Reveal answer Fill a bubble to check yourself A Correct answer Explanation The series in the question is following the pattern of operations * 2, + 1, * 2, + 1.... 1 * 2 = 2 2 + 1 = 3 3 * 2 = 6 6 + 1 = 7 7 * 2 = 14 14 + 1 = 15 15 * 2 = 30 Similarly, 30 + 1 = 31