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2017 AMC 8 Problems/Problem 14

Revision as of 15:37, 22 November 2017 by Pegasuswa (talk | contribs) (Created page with "Substitute the amount of problems as 100. This means that 50 were solved alone. 80% of 50 is 40. This means that 48 of the problems were solved alone. 90% of 50 is 45. This me...")
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Substitute the amount of problems as 100. This means that 50 were solved alone. 80% of 50 is 40. This means that 48 of the problems were solved alone. 90% of 50 is 45. This means that 45+48, so (C) percent of her problems were correct.

~pegasuswa

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