Question 766562
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Average for 1st 3 tests = 90
Therefore, total for 1st 3 tests = 90*3 = 270
Average for last 2 tests = 80
Therefore, total for last 2 tests = 80*2 = 160

Total for all 5 tests = 270 + 160 = 430

So, average for all 5 tests = 430/5 = 86

:)
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