A person travels to a certain place on foot, and walks 10% of the whole journey on the first day. The ratio of the distance traveled on the second day to the first day is 3:4. Now there are still 82.5 kilometers away from the destination. What is the itinerary of this person? How many kilometers.
某人徒步去某地旅行，第一天走了全程的10%，第二天与第一天所行路程比为3：4，现在距目的地还有82.5千米，求这个人的行程是多少千米．
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(1/10) * (3/4)</gadget>
<output>3/40 = around 0.075</output>

<gadget id="calculator">1 - (1/10) - (3/40)</gadget>
<output>33/40 = around 0.825</output>

<gadget id="calculator">82.5 / (33/40)</gadget>
<output>100</output>

<result>100</result>