The number of outbound tourists in a certain city this year is 30,000, an increase of 20% over last year. How many outbound tourists were there last year?
某市今年出境旅游人数为30000人次，比去年增长了两成，去年出境旅游人数是多少人次？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">30_000 / (6/5)</gadget>
<output>25_000</output>

<result>25_000</result>