There are 9 cars parked in the parking lot, and the number of large trucks is three times that of small cars. How many large trucks are parked in the parking lot?
停车场停了9辆小汽车，停大卡车的辆数是小汽车的3倍，停车场停了多少辆大卡车？
<gadget id="calculator">9 * 3</gadget>
<output>27</output>

<result>27</result>