Five people plan to meet after school, and if they all show up, there will be one group of five people. However, if only three of them show up, in how many ways is this possible?

Answer to the question: Five people plan to meet after school, and if they all show up, there will be one group of five people. However, if only three of them show up, in how many ways is this possible?

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Selecting 2 people of of five can be done in ways.

=(5!)/(2!*3!)

=10 ways

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