The actual distance from Shanghai to Hangzhou is about 150 kilometers. On a map with a scale of (1/3000000), what is the distance in centimeters between the two places?
上海到杭州的实际距离大约150千米，在一幅比例尺是(1/3000000)地图上，两地间的距离是多少厘米．
<gadget id="calculator">1 / 3_000_000</gadget>
<output>1/3_000_000 = around 0</output>

<gadget id="calculator">150 * 100_000 * (1/3_000_000)</gadget>
<output>5</output>

<result>5</result>