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?
1 answer:
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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