2009 AMC 8 Problem 2

Attempt Problem 2 of the 2009 AMC 8 below, then check your answer against the professionally curated solution from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 2009 AMC 8 solutions, or check the answer key.

All problems are used with official legal permission of the Mathematical Association of America (MAA).

2.

On average, for every 44 sports cars sold at the local car dealership, 77 sedans are sold. The dealership predicts that it will sell 2828 sports cars next month. How many sedans does it expect to sell?
77
3232
3535
4949
112112
Answer: D
Concepts:ratio and proportion
Small hint:
Use the ratio 44 sports cars to 77 sedans.
Big hint:
Going from 44 to 2828 sports cars multiplies by 7.7.
Solution:
Set up the proportion 47=28x. \dfrac{4}{7} = \dfrac{28}{x}. Cross-multiplying gives 4x=7⋅28 4x = 7 \cdot 28 and hence x=49. x = 49.
Thus, D is the correct answer.
LIVE by Po-Shen Loh
Programs

LIVE Classes

Self-Paced Classes

Stars

Scholarship

About Us

Who Is Po-Shen Loh?

Email Contact

Newsletter

Jobs

Become a Star

For a more Thought Full world.

© 2026 Expii, Inc.