BELLE3118 BELLE3118

12-02-2018
Mathematics

contestada

A chemistry professor has 36 questions that she uses on her exams. her exams always have 11 questions. how many distinct exams can she give? the order of the questions does not matter.

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danhishere danhishere

12-02-2018

36C11 = 36! / (25! 11!)
= (36 x 35 x 34 x 33 x 32 x 31 x 30 x 29 x 28 x 27 x 26) / (11 x 10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1)
= 600,805,296 exams

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