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To find the grade percentage, you need to divide the number correct by the total number of questions. In this case, that would mean 510 divided by 562, which would equal .907

Move the decimal to the right 2 places (90.7%) and then round up if the number past the decimal is greater than 5...in this case, it is '7', so we would round up.

The grade percentage would be 91%.

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13y ago
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7y ago

76.4% or C

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Q: What grade is 420 out of 550?
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