<PRE><B>Question 889012</B>
We have 3 test score (60+70+80) and we have taken 5 total test. We know the average of our test scores is 80. How do we find out the other 2 test scores?
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1st test score: x
2nd test score: y
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Equatiion:
(60+70+80+x+y)/5 = 80
210 + x + y = 400
x+y = 190
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That is as far as you can go.
The sum of the unknown test scores must be 190.
Cheers,
Stan H.
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