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The arithmetic mean of six grades is 87. If the lowest grade is dropped, the mean is 88. What is the lowest grade?

 Jul 7, 2022
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6 * 87   =   522 points

5 * 88   =  440 points

 

The grade dropped  is    522  - 440  =    82

 

 

cool cool cool

 Jul 7, 2022

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