2004 AMC 10B Problem 7
Problem 7 of 25EasierAlgebra
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
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Solution
Isabella received Canadian dollars and spent leaving So
Then so The sum of its digits is
Thus, the correct answer is A.