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10. In an examination, a student scores 4 marks for every correct answer and loses 1 mark for every incorrectanswer. If he attempts all 75 questions and secures 125 marks, what are the number of questions heattempted correctly?please answer this question ....this may help me a lot..!​

Answer»

ANSWER:

If the number of correct answer be X,

then the number of incorrect answer is (75X).

∴4x−(75−x)

=125

or x=40

Step-by-step EXPLANATION:

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