UPSC CDS II 2025 Mathematics Paper

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Question : 93 of 100
 
Marks: +1, -0
The frequency distribution of marks of 100 candidates in a particular examination is as follows:
Marks Number of Candidates
More than 10 100
More than 20 75
More than 30 60
More than 40 40

What are the average marks of the candidates?
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