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In an objective examination of 90 questions, 5 marks are allotted for every correct answer and 2 marks are deducted for every wrong answer. After attempting all the 90 questions a students got a total of 387 marks. Find the number of questions that he attempted wrong.
  • a)
    7
  • b)
    8
  • c)
    9
  • d)
    10
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
In an objective examination of 90 questions, 5 marks are allotted for ...
Let the wrong questions be x.
We get the equations as (90-x)x5 - (xx2) =387 => x= 9
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Most Upvoted Answer
In an objective examination of 90 questions, 5 marks are allotted for ...
Objective Examination Scoring Calculation
- Each correct answer: 5 marks
- Each wrong answer: -2 marks
- Total number of questions: 90

Total Marks Obtained:
- Let the number of correct answers be x
- Therefore, the number of wrong answers will be 90 - x
- Total marks obtained = (5 * x) - (2 * (90 - x))
- Simplifying the equation, we get: 7x - 180 = 387
- Solving for x, we get: x = 81

Number of Questions Attempted Wrong:
- Number of correct answers = 81
- Number of wrong answers = 90 - 81 = 9

Answer:
- The student attempted 9 questions wrong.
- Therefore, the correct option is C.
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In an objective examination of 90 questions, 5 marks are allotted for every correct answer and 2 marks are deducted for every wrong answer. After attempting all the 90 questions a students got a total of 387 marks. Find the number of questions that he attempted wrong.a)7b)8c)9d)10Correct answer is option 'C'. Can you explain this answer?
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In an objective examination of 90 questions, 5 marks are allotted for every correct answer and 2 marks are deducted for every wrong answer. After attempting all the 90 questions a students got a total of 387 marks. Find the number of questions that he attempted wrong.a)7b)8c)9d)10Correct answer is option 'C'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about In an objective examination of 90 questions, 5 marks are allotted for every correct answer and 2 marks are deducted for every wrong answer. After attempting all the 90 questions a students got a total of 387 marks. Find the number of questions that he attempted wrong.a)7b)8c)9d)10Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In an objective examination of 90 questions, 5 marks are allotted for every correct answer and 2 marks are deducted for every wrong answer. After attempting all the 90 questions a students got a total of 387 marks. Find the number of questions that he attempted wrong.a)7b)8c)9d)10Correct answer is option 'C'. Can you explain this answer?.
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