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A pupil's marks were wrongly entered as 83 instead of 63 Due to that the average marks for the class got increased by half The number of pupils in the class is?
Wiki User
∙ 13y ago
Let there be x pupils in the class.
Total increase in marks =x x1=x22
x= (83 - 63) x= 20 x= 40.22
Wiki User
∙ 13y ago
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