The pattern that follows the rule "Add 6" would start from a number and increase by 6 each time.
Let's analyze each option:
-
3, 9, 15, 21, 27, 33:
- 3 + 6 = 9
- 9 + 6 = 15
- 15 + 6 = 21
- 21 + 6 = 27
- 27 + 6 = 33
- This follows the rule.
-
2, 8, 12, 18, 22, 28:
- 2 + 6 ≠ 8 (it's actually +6, +4, +6, +4 ...)
- This does not follow the rule.
-
4, 9, 15, 20, 26, 31:
- 4 + 6 ≠ 9 (it's actually +5, +6, +5, +6 ...)
- This does not follow the rule.
-
1, 6, 11, 16, 21, 26:
- 1 + 5 ≠ 6 (it's actually +5, +5, +5, +5, +5 ...)
- This does not follow the rule.
Therefore, the only pattern that follows the rule "Add 6" is:
3, 9, 15, 21, 27, 33.