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Class 11MathematicsPermutations and CombinationsCombinationsExpert
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From (6) Indian and (5) foreign authors, a panel of (4) authors is to be formed with both types present. How many selections are possible?

Answer and explanation

Correct answer: (310)

Subtract all-Indian (^{6}C_{4}=15) and all-foreign (^{5}C_{4}=5) from total (^{11}C_{4}=330). Answer (310).

Related tags

PanelInclusionCombinationsPermutations And CombinationsMathematicsClass 11 Mcq
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