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Calculate the Mean mark for 12A.

Mathematics

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Step 1: Calculate the Mean mark for 12A.
The marks for 12A are: 57,60,65,68,70,72,75,78,80,82,85,88,90,92,95,9857, 60, 65, 68, 70, 72, 75, 78, 80, 82, 85, 88, 90, 92, 95, 98.
There are 16 marks.
The sum of the marks for 12A is:

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