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29 August, 05:36

Josie took a long multiple choice test. The ratio of the questions she got incorrect to the number of problems she got correct was 4:9. If there were 65 questions on the test, how many did Josie get incorrect

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  1. 29 August, 06:03
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    Answer:20 incorrect questions

    Step-by-step explanation: using the ratio formula

    Add up the correct n incorrect

    4+9 = 13 is the total ratio

    Incorrect answer ratio is 4

    So to know the number of incorrect answer is

    4/13 * number of questions on the test

    4/13 * 65 = 20 incorrect answer
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