The distance from the ferry terminal to the Gulangyu terminal is about 900 meters. It takes 6 minutes for a passenger ship to sail from the ferry terminal to the Gulangyu terminal, and 5 minutes to return.
轮渡码头到鼓浪屿码头的距离约900米，一艘客轮从轮渡码头驶向鼓浪屿码头用时6分钟，返航时用了5分钟，这艘客轮往返一次平均每分钟行驶多少米？
<gadget id="calculator">900 + 900</gadget>
<output>1_800</output>

<gadget id="calculator">6 + 5</gadget>
<output>11</output>

<gadget id="calculator">1_800 / 11</gadget>
<output>1_800/11 = around 163.636364</output>

<result>1_800/11 = around 163.636364</result>