A bus carries 50 passengers, each long-distance bus ticket is 8 yuan, and each short-distance bus ticket is 3 yuan. According to the statistics of the conductor, the income of long-distance bus tickets is 180 yuan more than that of short-distance bus tickets. How many people buy long-distance tickets.
一辆公共汽车载客50人，长途客车票每张8元，短途客车票每张3元，售票员统计长途车票的收入比短途车票多180元．购买长途车票的有多少人．
<gadget id="calculator">150 + 180</gadget>
<output>330</output>

<gadget id="calculator">8 + 3</gadget>
<output>11</output>

<gadget id="calculator">330 / 11</gadget>
<output>30</output>

<result>30</result>