Amath club took a math test. twelve of the members had an average score of 80. eighteen of the members had an average score of 86.

what was the class average?

The solution would be like this for this specific problem:

86 + 80 = 166

166 / 2 = 83

So the class average is 83.

In colloquial language, an average is the sum of a list of numbers divided by the number of numbers in the list.

Just took the quiz, the real answer is 83.6, and not "83" or whatever.

Hope this helps guys.

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