The scale of a map is 1:6000. The distance between the book city and the school is 15 cm on the map. What is the actual distance in meters?
一张地图的比例尺为1：6000，书城到学校的图上距离是15厘米，实际距离是多少米．
<gadget id="calculator">1 / 6_000</gadget>
<output>1/6_000 = around 0.000167</output>

<gadget id="calculator">15 / (1/6_000)</gadget>
<output>90_000</output>

<gadget id="calculator">90_000 / 100</gadget>
<output>900</output>

<result>900</result>