The mean marks of 30 students in a class is 58.5. Later on it was found that 75 – OfficerPath

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The mean marks of 30 students in a class is 58.5. Later on it was found that 75 was wrongly recorded as 57. Find the correct them.

Subject: MathematicsTopic: Basic Maths

A

57.4

B

57.5

C

58.9

D

59.1

Correct Answer: D

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