Among a group of 200 college students, 19 study French, 10 study German, and 28 study Spanish. If 3 study both French and German, 8 study French and Spanish, 4 study both German and Spanish, and 1 studies all three languages, how many of these students are a) NOT studying all three languages? b) Studying Spanish ONLY? Solution a)19+10+28-3-8-4+1=43 b)28-8-4+1=17.