How many different 4-letter radio station call letters can be made if repeats are allowed and the first letter must be k?

1 answer:

3 0

The first letter has to be a k, so the first letter only has one option.
The second letter can be any letter, so there are 26 options. This is the same for the third and fourth letter as well.
To find all possible options, you must multiply all of these "options" together.
1•26•26•26=17576

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Johannes Gutenberg - Wikipediahttps://en.wikipedia.org › wiki › Johannes_Gutenberg

Johannes Gensfleisch zur Laden zum Gutenberg was a German goldsmith, inventor, printer, and publisher who introduced printing to Europe with his ...

Occupation: Engraver, ‎inventor‎, and printer‎

Born: Johannes Gensfleisch zur Laden zum G...

Died: February 3, 1468 (aged about 68); Mainz‎, ...‎

Known for: The invention of the movable-type ...

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