All of the stocks on the over the counter market are designated by either a 4 letter or a 5 letter code that is created by using the 26 letters of the alphabet. Which of the following gives the maximum number of different stocks that can be designated with these codes?
A.
B.
C.
D.
E.  Options:
A) 2 (26)^5  B) 26(26)^4  C) 27(26)^4  D) 26(26)^5  E) 27(26)^5
There are two slightly different ways of doing this question:   No of different four letter codes:   26*26*26*26 = 26^4   No of different five letter codes:   26*26*26*26*26 = 26^5   Total number of codes = 26^4 + 26^5 = 27*26^4   ANS:27(26)^4
<result>C</result>
All of the stocks on the over the counter market are designated by either a 4 letter or a 5 letter code that is created by using the 26 letters of the alphabet. Which of the following gives the maximum number of different stocks that can be designated with these codes?
A.
B.
C.
D.
E.