Juanita is 15 years old and her brother is 5. what is the ratio of juanita's age to her brother's age?

 The required ratio is 3 : 1.

Step-by-step explanation:  Given that Juanita is 15 years old and her brother is 5 years old.

We are to find the ratio of Juanita's age to her brother's age.

Let x and y represents the ages of Juanita and her brother respectively in years.

Then, according to the given information, we have

Therefore, the ratio of Juanita's age to her brother's age is given by

Thus, the required ratio is 3 : 1.

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