total of 16 high-voltage utility poles are installed from Wangcun to Licun, and the average distance between two adjacent poles is 200 meters. How far is it from Wangcun to Licun?
从王村到李村一共设有16根高压电线杆，相邻两根的距离平均是200米．王村到李村大约有多远？
<gadget id="calculator">16 - 1</gadget>
<output>15</output>

<gadget id="calculator">15 * 200</gadget>
<output>3_000</output>

<result>3_000</result>