SOLUTION: If i score 99 on my first test and 85 on my second, what do I need to get on my third test in order to get an overall average of 90?

SOLUTION: If i score 99 on my first test and 85 on my second, what do I need to get on my third test in order to get an overall average of 90?

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Question 370018: If i score 99 on my first test and 85 on my second, what do I need to get on my third test in order to get an overall average of 90?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
99 on first
85 on second
total of two tests = 184
..
you need average 90 from 3 tests
so total score will be 90*3 = 270
..
you have 184
you require 270 -184 = 86 in the third test
...
m.ananth@hotmail.ca
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