2004 AMC 12B Problem 5
Below is the professionally curated solution for Problem 5 of the 2004 AMC 12B, from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 2004 AMC 12B solutions, or check the answer key.
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Difficulty rating: 1150
5.
On a trip from the United States to Canada, Isabella took U.S. dollars. At the border she exchanged them all, receiving Canadian dollars for every U.S. dollars. After spending Canadian dollars, she had Canadian dollars left. What is the sum of the digits of
Solution:
Exchanging gives Canadian dollars. After spending she has Then so The sum of its digits is
Thus, the correct answer is A.
Problem 5 in Other Years
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