CUET Preparation Today
In an examination, a student scores 6 marks for every correct answer and loses 4 marks for every wrong answer. If he attempted 80 questions and obtained 310 marks, how many questions did he attempt correctly? |
59 65 63 67 |
63 |
If all questions are correct, then max marks =80 × 6 = 480 If all questions are wrong, then max marks = 80 × 4 = - 320 Now, lets Use allegation method:
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