SOLUTION: Twenty students took their Chemistry test on Tuesday and their average (arithmetic mean) was 85. Five students took a make up test and their average (arithmetic mean) was 80. What

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Question 680448: Twenty students took their Chemistry test on Tuesday and their average (arithmetic mean) was 85. Five students took a make up test and their average (arithmetic mean) was 80. What was the average for the entire class?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Twenty students took their Chemistry test on Tuesday and their average (arithmetic mean) was 85. Five students took a make up test and their average (arithmetic mean) was 80. What was the average for the entire class?
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Average = (total test points)/(total students) = (20*85+5*80)/25 = 84
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Cheers,
Stan H.
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