in a test 5 marks are given for every correct answer and -2 marks are given for every incorrect answer smitha answered all questions and scored (-15) marks though he got 3 correct answer. how many incorrect answer Had they attempted.
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in a test 5 marks are given for every correct answer and -2 marks are given for every incorrect answer smitha answered all questions and scored (-15) marks though he got 3 correct answer. how many incorrect answer Had they attempted.
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