Of a certain high school graduating class, 25 percent of the students continued their formal education, and 50 percent of those who continued their formal education went to four-year colleges. If 100 students in the class went to four-year colleges, how many students were in the graduating class?
Correct answer: C
Explanation
30 students went to a 4-year colleges.
This was 50 % of all those who continued their formal education, after completing graduation.
=> 60 students continued their formal education, after completing graduation.
And, this was 25 % of total students in graduaction class.
=> 240 total students in graduation class.
Answer C
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