Combinatoricshard
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Number of ways to choose a subcommittee of 3 from a committee of 10, which was chosen from 20 people.
Number of ways to choose a subcommittee of 3 from a committee of 10, which was chosen from 20 people.
Number of ways to choose a subcommittee of 3 from a committee of 10, which was chosen from 20 people.