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Mathematics 8 Online
OpenStudy (goformit100):

Given 8 different Physics books, 7 different Chemistry books and 5 different Mathematics books. How many ways are there to be select one book ?

OpenStudy (goformit100):

@shamim

OpenStudy (whpalmer4):

You're just picking one book out of 8+7+5 = 20 books, right?

OpenStudy (anonymous):

so it is 20! but i m wondering what 8! * 7! * 5! represents

OpenStudy (whpalmer4):

If you're just picking 1 book out of 20, isn't that simply 20 ways to choose?

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