On a map with a scale of (1/25000000), the distance between A and B is 16 cm. If it is drawn on a map with a scale of (1/40000000), what is the distance between A and B?
在比例尺是(1/25000000)的地图上，量得A，B两地的距离是16厘米，如果画在比例尺是(1/40000000)的地图上，A，B两地间的距离是多少？
<gadget id="calculator">1 / 25_000_000</gadget>
<output>1/25_000_000 = around 0</output>

<gadget id="calculator">16 / (1/25_000_000)</gadget>
<output>400_000_000</output>

<gadget id="calculator">1 / 40_000_000</gadget>
<output>1/40_000_000 = around 0</output>

<gadget id="calculator">400_000_000 * (1/40_000_000)</gadget>
<output>10</output>

<result>10</result>