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.

Respuesta :

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