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Posted By: Ramkumar Member Level: Diamond Posted Date: 26 Apr 2008 Category: Aptitude Test

An anthropologist discovers an isolated tribe whose written alphabet contains only six letters (call the letters A, B, C, D, E and F). The tribe has a taboo against using the same letter twice in the same word. It's never done.
If each different sequence of letters constitues a different word in the language, what is the maximum number of six-letter words that the language can employ?

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