posted by Unknown .
My english teacher gave us 8 possible essay questions that might show up on are exam. She said she will put three of those essays on the test for us to do. She said that we could figure out the ones that she was going to put on there. If there is 8 possible questions what numbers might be on the test.
I must be missing something, since there will be 56 different triplets one can from from 8 questions.
8x7x6/(3x2x1) = 56
C(8,3) = 56