Question

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Answer 1

Do 80% for 800 and 90% for 800 and pick the number between

Answer 2

This is simple

If we divide the max score by 10 then we get 10 percent of the max score which is 80.

From there, 10*8=80 so 80*8=640 which is 80%

To find 90% we multiply 80 by 9 which is 720

So in conclusion the answers will be between 640 and 720

The answers are 710 and 645

Hope that helps