2009 AMC 12B Problem 3
Below is the professionally curated solution for Problem 3 of the 2009 AMC 12B, from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 2009 AMC 12B solutions, or check the answer key.
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Difficulty rating: 1000
3.
Twenty percent less than is one-third more than what number?
Solution:
Twenty percent less than is
One-third more than is so gives
Thus, the correct answer is D.
Problem 3 in Other Years
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