motorcycle factory implements a fixed salary system. Each person assembles 50 vehicles per month, and the salary is calculated at 30 yuan per vehicle, and the excess part is calculated at 50 yuan per vehicle. Master Wang earned a total salary of 1,750 yuan last month, and he assembled motorcycles last month. How many cars?
某摩托厂实行定额工资制度，每人每月组装50辆，按30元/辆计算工资，超出部分按50元/辆计算工资，王师傅上月共收入工资1750元，他上月共组装摩托车多少辆？
<gadget id="calculator">50 * 30</gadget>
<output>1_500</output>

<gadget id="calculator">1_750 - 1_500</gadget>
<output>250</output>

<gadget id="calculator">250 / 50</gadget>
<output>5</output>

<gadget id="calculator">5 + 50</gadget>
<output>55</output>

<result>55</result>