Perimeter of Circle

Answer: A

\begin{equation*}
\begin{split}
\text{The distance covered by the wheel} &= \text{circumference of the wheel}\times 2500\\\\
\text{The distance covered by the wheel} &= \pi\times \text{d} \times 2500\\\\
\text{The distance covered by the wheel} &= \frac{22}{7}\times 140\text{ cm} \times 2500\\\\
\text{The distance covered by the wheel} &= 1100000\text{ cm}\\\\
\text{The distance covered by the wheel} & = 11\text{ km}
\end{split}
\end{equation*}