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A multiple choice examination has 5 questions. Each question has three alternative answers of which exactly one is correct. The probability that a student

A multiple choice examination has 5 questions. Each question has three alternative answers of which exactly one is correct. The probability that a student will get 4 or more correct answers just by guessing, is [JEE Main 2013, 4M] (a) 13 35 (b) 11 35 (c) 10 35 17 35

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