Class 10R sat a test
Mean mark for class 10R=70%
30 students, 20 boys
Mean mark of b...
Mathematics, 18.02.2020 21:25 zamawi17
Class 10R sat a test
Mean mark for class 10R=70%
30 students, 20 boys
Mean mark of boys 62%
Calculate mean mark of girls
Answers: 1
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