The box office income of Yellow River Park's "June 1st" holiday is 105,000 yuan, which is 40% lower than the box office income of "May 1st" holiday. How much is the box office income of Yellow River Park's "May 1st" holiday?
黄河公园"六一"假期的票房收入为10.5万元，比"五一"假期的票房收入减少了40%，黄河公园"五一"假期票房收入为多少万元？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">10.5 / (3/5)</gadget>
<output>17.5</output>

<result>17.5</result>