This sequence follows a pattern of adding and subtracting:
4 + 2 = 6
6 + 3 = 9
9 - 3 = 6
6 - 2 = 4
Therefore, 4 - 1 = 3.
This sequence follows a pattern of multiplying by 3.
3 * 3 = 9
9 * 3 = 27
27 * 3 = 81
Thus, the missing number is 81.
This sequence follows a pattern of multiplying the previous number by 2.
2 * 2 = 4
4 * 2 = 8
8 * 2 = 16
Thus, 16 * 2 = 32.
This is a Fibonacci sequence, where each number is the sum of the two preceding ones.
1 + 1 = 2
1 + 2 = 3
2 + 3 = 5
3 + 5 = 8
5 + 8 = 13.
This sequence consists of every second letter in the alphabet.
A, C, E, G are all separated by a gap of one letter.
Thus, the next letter is H (after G).
