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An app has (4) language options and (2) theme options. In how many ways can one language and one theme be selected?

Answer and explanation

Correct answer: 8

For each language, there are 2 possible theme choices. Therefore, for 4 language options, the total number of selections is \(4\times2=8\). Adding to get \(6\) is incorrect because one language and one theme form a pair, so the multiplication principle applies. Exam tip: Multiply the numbers of choices when independent selections are made in sequence.

Related tags

Fundamental Counting PrincipleMultiplication RulePermutations And CombinationsElementary CountingApp SettingsFundamental Principle Of CountingMathematicsClass 11 Mcq

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