The actual height of Building No. 1 in Changjiang Garden is 25m, and the ratio of its height to the height of the model is 200:1. How many centimeters is the height of the model?
长江花园1号楼的实际高度是25m，它的高度与模型的高度之比是200：1，模型的高度是多少厘米？
<gadget id="calculator">1 / 200</gadget>
<output>1/200 = around 0.005</output>

<gadget id="calculator">25 * (1/200)</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(1/8) * 100</gadget>
<output>25/2 = around 12.5</output>

<result>25/2 = around 12.5</result>