Multiple choice

What will come in place of question mark?

1, 2, 3, 6, 7, 14, 15, 30, ?

  1. 31

  2. 60

  3. 45

  4. 35

  5. 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