SOLUTION: In a class of 20 boys and 12 girls, the boys had a mean mark of 45% in an examination and the girls had a mean mark of 52%. Calculate the mean percentage mark for the whole class,

SOLUTION: In a class of 20 boys and 12 girls, the boys had a mean mark of 45% in an examination and the girls had a mean mark of 52%. Calculate the mean percentage mark for the whole class,

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Question 1053402: In a class of 20 boys and 12 girls, the boys had a mean mark of 45% in an examination and the girls had a mean mark of 52%. Calculate the mean percentage mark for the whole class, correct to the nearest 1%
Answer by jorel555(1290) (Show Source): You can put this solution on YOUR website!
20/32x.45=.28125
12/32x.52=.195
Mean mark for the class: .28125+.195=.47625. ☺☺☺☺
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