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A student has to choose one language from (3) languages and one project from (4) projects. If the student also chooses one presentation mode from (2) modes how many ways are possible?

Answer and explanation

Correct answer: 24

There are 3 independent choices for the language, 4 for the project, and 2 for the presentation mode. By the fundamental principle of counting, the total number of ways is \(3 \times 4 \times 2=24\). Hence, 24 is correct. Option 12 counts only the language and project choices \(3 \times 4\) and omits the 2 presentation-mode choices. Exam tip: For successive independent choices, multiply the number of options at each stage.

Related tags

Fundamental Counting PrinciplePermutations And CombinationsMultiplication RuleClass 11 MathematicsCounting TechniquesFundamental Principle Of CountingMathematicsClass 11 Mcq

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