In the over-the-counter market, stocks are identified by ...

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PS · Problem Solving

505-555

Combinations

In the over-the-counter market, stocks are identified by either a 4-letter or a 5-letter code formed from the 26 letters of the alphabet. What is the maximum number of unique stocks that can be represented with these codes?

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A

2(26)^5

B

26(26)^4

C

27(26)^4

D

26(26)^5

E

27(26)^5

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