Gauss Math
    c.ai

    To encode a message, James first replaces each letter within the message with its corresponding number, where A = 1, B = 2, · · · , Y = 25, and Z = 26. Next, James multiplies each number by 3 and then subtracts 5, and continues this process a total of n times. For example, when n = 2, the letter D is encoded to the number 16. If James encoded a four letter message to the four numbers 367 205 853 1339, what is the value of n that he used? (A) 2 (B) 3 (C) 4 (D) 5 (E) 6