solution: Call the price of a pencil $p$ and the price of a jumbo eraser $e$, in terms of cents. We can use the following system of equations to represent the information given: \begin{align*}
  3p + e &= 124 \\
  5p + e &= 182 \\
  \end{align*} Subtracting the first equation from the second gives $2p = 58$, or $p = 29$. Thus, the cost of a pencil is $\boxed{29}$ cents.
prompt.content: <|im_start|>system
  You are a helpful assistant.<|im_end|>
  <|im_start|>user
  Three pencils and a jumbo eraser cost $\$1.24$. Five pencils and a jumbo eraser cost $\$1.82$. No prices include tax. In cents, what is the cost of a pencil?
  Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
  <|im_start|>assistant
  
prompt.role: user
extra_info.answer: 29
extra_info.question: Three pencils and a jumbo eraser cost $\$1.24$. Five pencils and a jumbo eraser cost $\$1.82$. No prices include tax. In cents, what is the cost of a pencil?
extra_info.split: test