Question 1144581
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Here is an alternative method for solving problems like this involving the average of numbers that are "close together".<br>
His first test is 8 points over the desired average.
His second test is 2 points under the desired average.
So his point total for the first two tests is 8-2 = 6 points over the desired average.
So to get EXACTLY an 80 average his next test should be 6 points under the desired average.<br>
ANSWER: 80-6 = 74