A building whose actual height is 50 meters is drawn on a drawing with a scale of 1:500, how many centimeters should it draw?
一座建筑物，实际高度是50米，画在比例尺是1：500的图纸上，应画多少厘米．
<gadget id="calculator">50 * 100</gadget>
<output>5_000</output>

<gadget id="calculator">1 / 500</gadget>
<output>1/500 = around 0.002</output>

<gadget id="calculator">5_000 * (1/500)</gadget>
<output>10</output>

<result>10</result>