What letter must replace the "(?)" in this finite sequence? Explain.
A, A, A, A, (?), A, A, A, A, A, A, __, __, __, __, __, __, A, __, ... , A.
All "A"s are present, and the last "A" shown is the final letter of the sequence.
The letter that would replace the mark of interrogation is "N".
The ith term of the given sequence is constituted by capital form of the ith greek alphabet.
Since the fifth greek alphabet is "epsilon", it follows that the
required letter that replacing the mark of interrogation is "N".