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Subjects
Class 11MathematicsPermutations and CombinationsFundamental principle of countingHard
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A question paper has (5) questions in section (A) and (6) questions in section (B). A student must attempt (6) questions with at least (2) from section (A) and at least (3) from section (B). In how many ways can the selection be made?

Answer and explanation

Correct answer: (325)

The valid cases are ((2,4)) and ((3,3)). Form cases only after combining the at least conditions of both sections.

Related tags

Exam-SelectionCombinationsCountingFundamental Principle Of CountingPermutations And CombinationsMathematicsClass 11 Mcq
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