Mark H. answered 09/07/18
Tutor
New to Wyzant
Taught at computer camps (ages 8-15) to major corporations
This might be one of those trick questions. If it is, then the ratio of 2/3 is irrelevant to the answer. Why? The desired number is a ratio of students who study french to students who do not study french. We know that 25 students study french. If you make a strict interpretation of the other number. You need students who do not study french. Then that number is the entire population of the school minus 25, who study french. It would be different if the desired ratio had the restriction of "of all the students who study a language, what is the ratio of those who study french and those who do not". Either way you have to give the answer in terms of a variable the represents the unknown, total student population.