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In an examination there are three objective questions and in each question there are 4 options. The number of ways in which any candidate may not give correct answers to all questions is
  • a)
    11
  • b)
    12
  • c)
    27
  • d)
    63
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
In an examination there are three objective questions and in each ques...
Calculation of ways a candidate may not give correct answers to all questions:
- Number of ways to answer each question incorrectly:
- For each question, there are 3 incorrect options out of 4. Therefore, the number of ways to answer a single question incorrectly is 3.
- Number of ways to answer all three questions incorrectly:
- Since each question can be answered incorrectly in 3 ways, the total number of ways to answer all three questions incorrectly is 3 x 3 x 3 = 27.
Therefore, the correct answer is option 'D', which states that the number of ways in which any candidate may not give correct answers to all questions is 27.
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In an examination there are three objective questions and in each question there are 4 options. The number of ways in which any candidate may not give correct answers to all questions isa)11b)12c)27d)63Correct answer is option 'D'. Can you explain this answer?
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