Question 984895
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In order to get an 80 average on 5 test scores, the total of all the test scores must be 400 or more.  If you add the existing scores, you get 291.  That means you would need to get 109 on the final, and except for the "toss the lowest score" option, you could kiss your 80 average goodbye.  Hence, in order to get the 80 average, the student must take advantage of the opportunity to toss the lowest score.  So we toss out the lowest score, namely the 55, so the total of the three tests you are going to count is now 236.  You still need 400 points for the 80, so double the Final Test score has to be 400 minus 236 or 164.  That means you need 82 minimum on the Final for an 80 average overall.


John
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My calculator said it, I believe it, that settles it

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