In any year, millions of advanced placement (ap) exams are taken in the united states. in a particular year, a total of 60 thousand exams was taken in chinese, french, and german language and culture. the number of chinese exams taken was 20 thousand more than the number of german exams taken. the number of french exams taken was 16 thousand more than the sum of the number of chinese and german exams. find the number of exams taken in each language.