The toy factory has produced a batch of motorcycle models at a ratio of 20:1. The actual length of the motorcycle is 2.5 meters. How many centimeters is the length of the model?
玩具厂按20：1的比生产了一批摩托车模型，摩托车的实际长度是2.5米，模型的长度是多少厘米？
<gadget id="calculator">2.5 * 100</gadget>
<output>250</output>

<gadget id="calculator">250 * 20</gadget>
<output>5_000</output>

<result>5_000</result>