2023 · Q100
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?
General Mental Ability, Quantitative Aptitude and StatisticsElementary statistics
- A6
- B8
- C10
- D12
Explanation
The candidate marks C on questions 3, 7, 11, ..., 47, i.e. every 4th question starting at 3, which is 12 questions. Score = 12 x 4 for the correct ones minus 38 x 1 for the wrong ones = 48 - 38 = 10. Hence C.