A pupil\'s marks were wrongly entered as 83 instead of 63. Due to that – McqOptions

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1.	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 (1/2). The number of pupils in the class is:
A.	20
B.	10
C.	40
D.	30
Answer» D. 30

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