Question 1114855
A student council consists of 10 students with 4 juniors and 6 seniors. How many 4-member committees can be formed consisting of 2 juniors and 2 seniors? 
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# of 2 person junior sets:: 4C2 = 6
# of 2 person senior sets:: 6C2 = 15
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# of 4-member committees with 2j and 2s:: 6*15 = 90
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Cheers,
Stan H.
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