In an examination, a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer. If he attempts 60 questions in all and secures 140 marks, find the number of questions he attempts correctly.

In an examination, a student scores 4 marks for every correct answer a

1.	In an examination, a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer. If he attempts 60 questions in all and secures 140 marks, find the number of questions he attempts correctly.
A.	35
B.	38
C.	40
D.	42
Answer» D. 42

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In an examination, a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer. If he attempts 60 questions in all and secures 140 marks, find the number of questions he attempts correctly.

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