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Mathematics 9 Online
OpenStudy (anonymous):

how many different committees can be formed from 12 teachers and 42 students if the committee consists of 2 teachers and 2 students? the committee of 4 member can be seledcted how many different ways?

OpenStudy (amistre64):

well, there appear to be 12 choose 2 ways, to pick 42 choose 2 students ...

OpenStudy (amistre64):

\[\binom{12}{2}\binom{42}{2}\]

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