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The scores on Trisha's first three tests were 88, 73 and 70. After two more tests, the mean score for all five tests was 81. Each test score was less than 90, and all of Trisha's test scores were different integer values. List Trisha's five test scores from the greatest to the least.

 Mar 28, 2020
 #1
avatar+1970 
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Hint:

 

The total score will add up to: 81*5=405

Add up the first three: 231

 

Hence, the added value of the two test scores will be 174. Now, find the value of the two scores :D

 

Hope this helped!

 Mar 28, 2020
 #2
avatar+111330 
+1

Thanks, Cal   !!!!

 

As Cal found,  the  other two test scores  sum to 174

 

If we divide  174  by 2  we get  87

 

But we can't  have  the same scores

 

And  the two scores  can't be  88  and 86  because we already have a score of 88

 

But note....if we let one of the scores  =  89, then the other could  be 174 - 89  =  85

 

So  we  have

 

70  73  85  88 89  !!!

 

 

cool cool cool  

 Mar 28, 2020

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