SOLUTION: 100 people on a plane and there are 12 more students than adults, what is the ratio of students to adults?

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Question 1067394: 100 people on a plane and there are 12 more students than adults, what is the ratio of students to adults?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
I think they are assuming there are ONLY students
and adults on the plane, and none of the adults
are students ( not always true in real life )
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Let +a+ = the number of adults
+a+%2B+12+ = the number of students
and
+a+%2B+a+%2B+12+=+100+
+2a+=+88+
+a+=+44+
and
+a+%2B+12+=+44+%2B+12+
+a+%2B+12+=+56+
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The ratio of students to adults is:
+56%2F44+=+28%2F22+
+28%2F22+=+14%2F11+