An automobile factory produces 500 trucks per year, 1.2 times as many buses as trucks, and 300 more cars than the total of trucks and buses. How many cars does this factory produce every year?
一个汽车制造厂每年生产卡车500辆，生产的大客车辆数是卡车的1.2倍，生产的轿车辆数比卡车和大客车的总量多300辆，这个厂每年生产轿车多少辆？
<gadget id="calculator">500 * 1.2</gadget>
<output>600</output>

<gadget id="calculator">500 + 600 + 300</gadget>
<output>1_400</output>

<result>1_400</result>