In a class test +3 Is awarded for every correct answer, -2 is deducted for every incorrect answer and no marks for not attempting any question.
Ram scores -5 Marks in tis test.if he got 13 incorrect answers, how many questions has he attempted correctly?
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Answer: He gave 7 correct answers as 26(incorrect*2)-5(his marks)=21 and 21/3(correct mark) is 7.
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