SOLUTION: A test consists of 13 questions. Each student must choose a group of 10 questions. How many different groups of questions could be chosen.

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Question 246869: A test consists of 13 questions. Each student must choose a group of 10 questions. How many different groups of questions could be chosen.
Answer by Edwin McCravy(20055) About Me  (Show Source):
You can put this solution on YOUR website!

13 CHOOSE 10

13C10=13C%2813-10%29=13C3+=+%2813%2A12%2A11%29%2F%283%2A2%2A1%29=1716%2F6=286

Edwin