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QuestionMathematics

Class 10R sat a test. The mean mark for the class was 70%. There are 30 students in the class, 20 of whom are boys. The mean mark for the boys in the test was 62%. Work out the mean mark for the girls.
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Step 1
Let's solve this step by step:

Step 2
: Identify the given information

- Boys' mean mark: $$62\%
- Number of boys: 20

Final Answer

The mean mark for the girls is 86\%.

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