It the pattern continues as ssa ssa, then 's' would be next in the sequence. This is only if the pattern is a recurring pattern. If the pattern continues without recurrence of the given sequence, then 'a' would be next, because if 's' repeats itself twice, then 'a' would also.
S
S for Saturn
E
The next letter in the sequence AFAHMAS is "A." The pattern alternates between the letter "A" and the first letters of the words in the phrase "For Every letter" (F, H, M, S). Therefore, after "S," the sequence returns to "A."
I
F
The next letter in the sequence AAAAA is 'E'. It is a vowel sequence.
The next letter in the sequence is S. The pattern follows the alphabet sequence with each letter moving forward two positions.
These sequence stands for: Ten Twenty Thirty Forty Fifty Sixty Seventy would be next in the sequence, so the answer is 'S'.
w
d
N for november. The sequence starts with march.