The newly opened buses in Xinjiang County implement two kinds of ticket systems, ordinary tickets are 2 yuan each, and pass tickets are 5 yuan each. One day when the conductor counted the ticket revenue, he found that there were 880 passengers on that day, and the revenue from the pass ticket was 1740 yuan more than that from the ordinary ticket. How many people bought the pass on this day?
新江县新开通的公共汽车实行两种票制，普通车票每张2元，通票每张5元．有一天售票员统计车票收入时，发现这天共有乘客880人，通票收入比普通车票收入多1740元．问这天购买通票的有多少人？
<gadget id="calculator">1_760 + 1_740</gadget>
<output>3_500</output>

<gadget id="calculator">5 + 2</gadget>
<output>7</output>

<gadget id="calculator">3_500 / 7</gadget>
<output>500</output>

<result>500</result>