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4 February, 00:55

When a class took a math test, 15% of the class failed, 25% made some mistakes (but didn? t fail), and 24 students got perfect scores. How many students were in the class?

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  1. 4 February, 01:03
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    Okay so we have to figure out what percentage passed first let’s add all the percentages

    25%+15% = 40%

    Now subtract that from 100%

    100%-40% = 60%

    So 60% of the class passed

    Now let’s use x to represent the total number of people on the class

    x•0.6 = 24

    Now solve for x

    x = 40

    There are 40 people in the class we figure this out my converting 60% to 0.6 and multiplying it by 40 and getting 24 which is correct
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