[Miss Marple]

Ahem.

6 X 9 = 54

7 X 6 = 42

[dangus]

Yeah, Miss Marple, that's part of the joke.

[JenB]

6 X 9 = 54
7 X 6 = 42

Obviously you haven't read Hitchhiker's Guide to the Galaxy

And also, in base 13, 6x9 does indeed equal 42.

[thulldud]

You obviously didn't read the book.