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Subjects
Class 11MathematicsPermutations and CombinationsFundamental principle of countingMedium
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A 4-question test has 3, 4, 5, and 2 options for its questions, respectively. One answer must be selected for each question. How many answer patterns are possible?

Answer and explanation

Correct answer: 120 patterns

Each question can be answered in the stated number of ways, and a choice is made for every question. By the multiplication principle, the number of answer patterns is 3 × 4 × 5 × 2 = 120.

Related tags

Counting PrincipleMultiplication PrincipleClass 11Fundamental Principle Of CountingPermutations And CombinationsMathematicsClass 11 Mcq
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