In a competition ,3 marks are given for every correct answer and (-1 ) mark is given for every incorrect answer .Sharad scored 47 marks .If he got 18 correct answers how many questions he answered in correctly?
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In a competition ,3 marks are given for every correct answer and (-1 ) mark is given for every incorrect answer .Sharad scored 47 marks .If he got 18 correct answers how many questions he answered in correctly?
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