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9 March, 16:23

A professor writes 40 discrete mathematics true/false questions. Of the statements in these questions, 17 are true. If the questions can be positioned in any order, how many different answer keys are possible?

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  1. 9 March, 16:40
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    Number of different answer keys possible is 40! / (17! * 23!) = 88,732,378,800
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