A question paper contains 6 questions, each having an alternative,
The number of ways an examine can answer one or more questions is
(b) 728
(c) 729
(d) none of the
(a) 720
Answers
Answered by
2
Answer:
option D is the correct answer for your question
Step-by-step explanation:
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Answered by
19
Answer:
b) 728
Step-by-step explanation:
SInce each question has an alternative so there are 3 ways to answer each of the six questions - 1. 1st Alternative or 2. 2nd Alternative or 3. No answer So there are 3 possiblities for each of the 6 questions. Therefore total no. of ways in which a question paper can be answered = 3*3*3*3*3*3 = 729 But in ur case atleast one question must be answered. The way in which no answer is given to any of the question comes to 1 So in ur case answer = 729-1 =728
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