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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-> 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
