SOLUTION: in an examination a student score 4 mark for every correct ans and lose 1 mark for every wrong ans if he attempts in all 60 question and secures 130 mark what no of question does h

SOLUTION: in an examination a student score 4 mark for every correct ans and lose 1 mark for every wrong ans if he attempts in all 60 question and secures 130 mark what no of question does h

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Question 881037: in an examination a student score 4 mark for every correct ans and lose 1 mark for every wrong ans if he attempts in all 60 question and secures 130 mark what no of question does he attempts correctly.
Answer by sl.ahmed(1) (Show Source): You can put this solution on YOUR website!
Let, no of correct attemd is x then, 4x - 1*(60-x) = 130 => 4x - 60 x = 130 => 5x = 190 => x = 38 there for answer 38
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