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9 October, 05:51

Sue answered 80% of 150 test questions correctly. how many questions did she not answer correctly?

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  1. 9 October, 05:56
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    120 divided by 150 = 0.8 in percent it would be 80%. So she got 30 incorrect
  2. 9 October, 05:58
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    She answered 30 questions incorrectly.

    Multiply 80% (0.80) by 150 which should give you 120

    Subtract 120 from 150 and you get your answer 30
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