A multiple-choice question paper has 50 questions. Each question has got four options, namely A, B, C and D. Each correct answer carries 4 marks and each wrong answer carries -1 mark. A candidate decides to tick in the pattern
A, B, C, D, A, B, C, D, A, B, C, D, . . .
and so on starting from Question No. 1, till the end. If option (C) is the correct answer in each question, then what is the total score of the candidate?
This questions was previously asked in
EPFO APFC 2023
Explanation:
- The candidate answers in a cycle: A, B, C, D, A, B, C, D, and so on.
- Every cycle of 4 questions, option C is chosen correctly once, which fetches 4 marks.
- The other three questions in the cycle are answered incorrectly, losing 1 mark each.
- Each cycle, therefore, yields: 4 - 3 = 1 mark in total.
- For 50 questions, calculate the total cycles: 50/4 = 12 full cycles and a remainder of 2 questions.
- In 12 full cycles, the score is: 12 times 1 = 12
- The remaining 2 questions will be answered as A and B, both wrong, reducing the score by 2.
- Total score: 12 - 2 = 10.
Correct Answer: Option 3: 10