SOLUTION: 10 math students are working on a course project and the professor says they may work in groups of 2 people and submit their projects together. How many different groups of 2 peopl

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Question 608489: 10 math students are working on a course project and the professor says they may work in groups of 2 people and submit their projects together. How many different groups of 2 people can be made up from these students?
Answer by flame8855(424) About Me  (Show Source):
You can put this solution on YOUR website!
10!/(8!*2!)=45 ways