What is known?
She makes 6 out of 10.
[tex]\displaystyle 10 \rightarrow 6[/tex]
[tex]\displaystyle 25 \rightarrow x[/tex]
[tex]\displaystyle x= \frac{25 \cdot6}{10} = \frac{5\cdot6}{2} = \frac{30}{2} =15[/tex]
Answer: If she attempted to make 25 baskets, she'd make 15 out of 25.
HTH ;)