Q87
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 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:
A.
10
B.
20
C.
40
AnswerD.
73
Answer: Option C
Solution
Answer: Option C
Solution: