Marks of a student were wrongly entered as 83 instead of 63 . Due to that the…
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Marks of a student were wrongly entered as 83 instead of 63 . Due to that the average marks for the class got increased by 0.5 then the number of students in the class is
- A.
10
- B.
20
- C.
40
- D.
73
Attempted by 44 students.
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