Mathematics · Average

While entering data in a form, a student's marks were mistakenly entered as 97 instead of 67. As a result, the class average increased by 0.5 marks. What is the number of students in the class?

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While entering data in a form, a student's marks were mistakenly entered as 97 instead of 67. As a result, the class average increased by 0.5 marks. What is the number of students in the class?

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While entering data in a form, a student's marks were mistakenly entered as 97 instead of 67. As a result, the class average increased by 0.5 marks. What is the number of students in the class?

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