2006 AMC 12A Problems/Problem 3
Problem
The ratio of Mary's age to Alice's age is . Alice is
years old. How old is Mary?
Solution
Let be Mary's age. Then
. Solving for
, we obtain
. The answer is B.
The ratio of Mary's age to Alice's age is . Alice is
years old. How old is Mary?
Let be Mary's age. Then
. Solving for
, we obtain
. The answer is B.
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