solution: We have  \begin{align*}
  \frac{\sqrt{2.5^2 - 0.7^2}}{2.7-2.5} &= \frac{\sqrt{6.25 - 0.49}}{2.7-2.5} = \frac{\sqrt{5.76}}{0.2} = \frac{\sqrt{576/100}}{0.2}\\
  &= \frac{\sqrt{576}/\sqrt{100}}{0.2} = \frac{24/10}{0.2} = \frac{2.4}{0.2} = \boxed{12}.\end{align*}
prompt.content: <|im_start|>system
  You are a helpful assistant.<|im_end|>
  <|im_start|>user
  Simplify: $\frac{\sqrt{2.5^2-0.7^2}}{2.7-2.5}$.
  Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
  <|im_start|>assistant
  
prompt.role: user
extra_info.answer: 12
extra_info.question: Simplify: $\frac{\sqrt{2.5^2-0.7^2}}{2.7-2.5}$.
extra_info.split: test