Cori is 3 years old today. In 5 years, she will be one-third the age of her aunt. How old is her aunt today?
Let's think step by step below.
19
In 5 years, Cori will be 3 + 5 = 8 years old.

In 5 years, Cori’s aunt will be 8 x 3 = 24 years old.

Today, her aunt is 24 - 5 = 19 years old.

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The answer: 19