BELLE3118 BELLE3118
  • 12-02-2018
  • Mathematics
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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 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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