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How many questions were in the test?

智力题 2017-04-09 英语智力题 网络整理

  George took a test of a certain number of questions, each question having the same value. He answered 10 questions incorrectly. This resulted in an accuracy score of 60%. How many questions were in the test?

  A.15

  B.20

  C.25

  D.30

  E.35

答案:25,这是一道计算题,George的正确率是60%,错误率就是40%,我们用10除以40%,就可以得到总题数。

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