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An online examination have 12 question out of which we havethe alternative to select the answer. Choose how many ways can be there in which one can answer the question

  • a)
    312+1

  • b)
    212

  • c)
    312−1

  • d)
    312

Correct answer is option 'C'. Can you explain this answer?
Verified Answer
An online examination have 12 question out of which we havethe alterna...
No.of choices for each question = 3

 

There are six questions so total = (3)12

So no.of ways = (3)12 - 1
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Most Upvoted Answer
An online examination have 12 question out of which we havethe alterna...
For each question, there are 2 alternatives (either answer it or don't answer it). Therefore, the total number of ways to select one or more questions out of 12 is simply $2^{12}$, which is equal to $\boxed{\textbf{(c) }312}$.
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Community Answer
An online examination have 12 question out of which we havethe alterna...
C
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An online examination have 12 question out of which we havethe alternative to select the answer. Choose how many ways can be there in which one can answer the questiona)312+1b)212c)312−1d)312Correct answer is option 'C'. Can you explain this answer?
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