SOLUTION: In 1980 every student at South High School to exactly 1 of 3 science courses chemistry biology or physics at all but 250 students to chemistry exactly one-half of all the students
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Question 990062: In 1980 every student at South High School to exactly 1 of 3 science courses chemistry biology or physics at all but 250 students to chemistry exactly one-half of all the students took biology and exactly 72 physics how many students attended South High School. Year Answer by ikleyn(52787) (Show Source):