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bigtreezl
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zonk
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4 x 6c2 + 4c2 x 6c1 + 4c3
= ( one french ) * (2 people rest 6) + ( 2 out of french ) * ( 1 out of 6 ) + all 3 out of 4
= 100
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spriya
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bigtreezl
see attached
If 3 selected out 0f 10 ,we get 10C2=120 total selections or commities possible.

If 3 selected out of 6 for not french commities => 6C3=20 commities

hence 120-20 =100 commities for atleast one french teacher in commities

IMO E
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bigtreezl
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great explanation zoinnk!

OA is E



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