Mathematics, 06.05.2020 08:30 dillondelellis2006

Class 10R sat a test.
The mean mark for the class was 70%.
There are 30 students in class 10R, 20 of whom are boys.
The mean mark for boys in the test was 62%.
Work out the mean mark for the girls

Answers: 2

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Class 10R sat a test.
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More questions: Mathematics Another questions

Class 10R sat a test. The mean mark for the class was 70%. There are 30 students in class 10R, 20 of whom are boys. The mean mark for boys in the test was 62%. Work out the mean mark for the girls

Answers

Another question on Mathematics

Class 10R sat a test.
The mean mark for the class was 70%.
There are 30 students in class 10R, 20 of whom are boys.
The mean mark for boys in the test was 62%.
Work out the mean mark for the girls