Difference between revisions of "2017 AMC 8 Problems/Problem 14"
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| − | + | To solve this problem, first substitute the amount of problems as 100. This means that 50 of the problems were solved alone. 80% of 50 is 40. This means that 48 of the problems were solved together. 90% of 50 is 45. This means that 45+48, so (C) percent of Zoe’s problems were correct. | |
~pegasuswa | ~pegasuswa | ||
Revision as of 15:39, 22 November 2017
To solve this problem, first substitute the amount of problems as 100. This means that 50 of the problems were solved alone. 80% of 50 is 40. This means that 48 of the problems were solved together. 90% of 50 is 45. This means that 45+48, so (C) percent of Zoe’s problems were correct.
~pegasuswa
