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A student has to choose one chapter from (5) chapters and one question from (8) questions of the chosen chapter. Then one answer language is chosen from (2) languages. How many ways are possible?

Answer and explanation

Correct answer: (80) तरीके

The fundamental principle of counting applies because the choices are made in successive stages. First, there are 5 choices for the chapter. Once a chapter is selected, that chapter supplies 8 choices for the question. Finally, the student chooses one of 2 answer languages. Each complete outcome is determined by one chapter, one question from that chapter, and one language, so the counts are multiplied: 5 × 8 × 2 = 40 × 2 = 80. Therefore option A is correct. Option B omits the language choice, option C adds the numbers rather than multiplying them, and option D doubles the correct result without a stated additional choice.

Related tags

Fundamental-Principle-Of-CountingSuccessive-ChoicesPermutations-And-CombinationsFundamental Principle Of CountingPermutations And CombinationsMathematicsClass 11 Mcq

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