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Raghav scored 70 marks in a test, gettin...

Raghav scored 70 marks in a test, getting 4 marks for each right answer the losing 1 marks for each wrong answer. By mistake, examinee awarded 5 marks for each correct answer and deducted 2 marks been for each wrong answer, then Raghav would have scored 80 marks. How many questions were there in the test?

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