The distance between the two places is 60 meters. How many centimeters should be drawn on the 1:4000 drawing?
两地相距60米，画在1：4000的图纸上，应画多少厘米长？
<gadget id="calculator">60 * 100</gadget>
<output>6_000</output>

<gadget id="calculator">1 / 4_000</gadget>
<output>1/4_000 = around 0.00025</output>

<gadget id="calculator">6_000 * (1/4_000)</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>