Q:
In an examination, a student scores 4 marks for every correct answer and loses I mark for every wrong answer. If he attempts in all 60 questions and secures 130 marks, the number of questions he attempts correctly, is:
Answer & Explanation
Answer: B) 38
Explanation: Let the number of correct answers be X.
Number of incorrect answers = (60 – X).
Therefore, 4x – (60 – x) = 130
=> 5x = 190 => x = 38
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