In a local school district, the high school and middle school each received r dollars toward funding for the student arts program. The high school enrolled 600 students and the middle school enrolled 300 students. Later, the middle school transferred s dollars to the high school so that they would have received the same funding per student. Which of the following is equivalent to s?  Choose the most appropriate option:	A) r/3	B) r/2	C) 2r	D) 3r	E) r/9
Total per head = 2r/900   After s transfer both schools have total for head.   So at High School it will be:   r+s = (600)* (2r/900) = 12r/9=4r/3   i.e. s = 4r/3 - r/1 =4r-3r/3=r/3   r/3nswer :r/3
<result>A</result>
In a local school district, the high school and middle school each received r dollars toward funding for the student arts program. The high school enrolled 600 students and the middle school enrolled 300 students. Later, the middle school transferred s dollars to the high school so that they would have received the same funding per student. Which of the following is equivalent to s?