The marks of a student were entered as 88 instead of 68. Due

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The marks of a student were entered as 88 instead of 68. Due to this, the average marks of the class increased by 0.5. What is the number of students in the class?

[UP Police Constable Official Paper 2019 (Held on: 27 Jan 2019 Shift 1)]

A

10

B

20

C

30

D

40

EXPLANATION

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