At George Washington High School the ratio of graduating seniors that go on to college, as compared to those who do not, is 7 : 4. Last year 28 students went on to college. How large was the graduating class?
First you figure out that the ratio 7:4 is 1.75 Then you do this problem 28 divided by 1.75=16 And 28:16 is the same as 7:4 Now all you do is add 28+16=44
