SOLUTION: A TEST CONSISTS OF 20 PROBLEMS AND STUDENTS ARE TOLD TO ANSWER ANY 10 OF THESE QUESTIONS. IN HOW MANY DIFFERENT WAYS CAN THEY CHOOSE THE 10 QUESTIONS?
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Permutations
-> SOLUTION: A TEST CONSISTS OF 20 PROBLEMS AND STUDENTS ARE TOLD TO ANSWER ANY 10 OF THESE QUESTIONS. IN HOW MANY DIFFERENT WAYS CAN THEY CHOOSE THE 10 QUESTIONS?
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Question 476272: A TEST CONSISTS OF 20 PROBLEMS AND STUDENTS ARE TOLD TO ANSWER ANY 10 OF THESE QUESTIONS. IN HOW MANY DIFFERENT WAYS CAN THEY CHOOSE THE 10 QUESTIONS? Answer by Tatiana_Stebko(1539) (Show Source):
