94.5
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(100 + 89)/2 = 189/2 = 94.5%
75.4 is the average.
the mean average of 78 and 100 is 89
The average is all the numbers added together and divided by how many numbers there are. In this case: 78+100=178. 178/2=89. Therefore the mean/average of the two numbers is 89.
100