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Subjects
Class 11MathematicsPermutations and CombinationsFundamental principle of countingHard
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A plate has (7) types of sweets. (5) sweets are to be selected with at least (2) special sweets included. If there are (3) special sweets, in how many ways can this be done?

Answer and explanation

Correct answer: (21)

Choose (2) or (3) of the special sweets and fill the rest from ordinary sweets. Add valid cases for an at least condition.

Related tags

CombinationsAt-LeastCountingFundamental Principle Of CountingPermutations And CombinationsMathematicsClass 11 Mcq
सुधार सुझाएँ / Earn

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