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Subjects
Class 11MathematicsPermutations and CombinationsFundamental principle of countingMedium
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A meal consists of one starter chosen from 5, one main dish chosen from 4, and optionally one dessert chosen from 3 and one drink chosen from 2. How many different selections are possible?

Answer and explanation

Correct answer: 240 selections

There are 5 × 4 choices for the starter and main dish. The optional dessert has 3 + 1 choices (including none), and the optional drink has 2 + 1 choices. Therefore, the total is 5 × 4 × 4 × 3 = 240 selections.

Related tags

Counting PrincipleOptional ChoicesFundamental Principle Of CountingPermutations And CombinationsMathematicsClass 11 Mcq
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