SOLUTION: A class of 20 students took a math test. The 12 girls in the class had an average score of 85. The 8 boys in the class had an average score of 78. What was the class average.

Question 411291: A class of 20 students took a math test. The 12 girls in the class had an average score of 85. The 8 boys in the class had an average score of 78. What was the class average.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A class of 20 students took a math test. The 12 girls in the class had an average score of 85. The 8 boys in the class had an average score of 78. What was the class average.
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Total girl points 12*85
Total boy points 8*78
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Total class points = 12*85+8*78 = 1644
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Class average = 1644/20 = 82.2
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Cheers,
Stan H.
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