A question paper contains 6 question...

A question paper contains 6 question each having an alternative . The number of ways that an examine can answer one or more question is

243

242

729

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Assertion (A) : A question paper contains 5 questions each having an alternative. The number of ways that an examinee can answer one or more questions is 242. Reason (R): The number of ways of answering one or more of n questions when each question have an alternative is 3^(n)-1 . The correct answer is

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DIPTI PUBLICATION ( AP EAMET)-PERMUTATIONS & COMBINATIONS-EXERCISE 1B (COMBINATIONS )

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