Problem:
On average, for every sports cars sold at the local car dealership, sedans are sold. The dealership predicts that it will sell sports cars next month. How many sedans does it expect to sell?
Answer Choices:
A.
B.
C.
D.
E.
Solution:
Let number of sedans. Set up a proportion: . So the dealership expects to sell sedans.
Because selling sports cars corresponds to selling sedans, corresponds to .
Answer: .
The problems on this page are the property of the MAA's American Mathematics Competitions