A pupil’s marks were wrongly entered as 83 instead of 63. Due to the average marks for the class got increased by half. The number of pupils in the class is?

A pupil’s marks were wrongly entered as 83 instead of 63. Due to the

1.	A pupil’s marks were wrongly entered as 83 instead of 63. Due to the average marks for the class got increased by half. The number of pupils in the class is?
A.	10
B.	20
C.	40
D.	73
Answer» D. 73