GMAT考题：Prep2007E1-PS-41

GMAT考题

题库 / Prep2007E1-PS-41

All of the stocks onthe over-the-counter market are designated by either a 4-letter or a 5-lettercode that is created by using the 26 letters of the alphabet. Which of the following gives the maximumnumber of different stocks that can be designated with these codes?

~$2\left ( 26^{5} \right )$~

~$26\left ( 26^{4} \right )$~

~$27\left ( 26^{4} \right )$~

~$26\left ( 26^{5} \right )$~

~$27\left ( 26^{5} \right )$~