Uncle Zhang drove from home to the county town for a meeting at 7:00 in the morning. If he was driving at the current speed of 60 kilometers per hour, he would arrive at the scheduled time. When we reached the (1/3) noon of the whole journey, we encountered a traffic jam and stopped for 12 minutes. Uncle Zhang did the math, and if he wanted to arrive on time, he had to increase his speed by 25%. How many kilometers is it from Uncle Zhang's house to the county seat?
张叔早上7：00从家开车去县城开会，如果以当前每小时60千米的速度行驶，恰好能按预定时间到达．当行到全程的(1/3)午处时，遇上堵车，停了12分钟．张叔算了一下，要想按时到，接下来车速须提高25%．张叔家到县城共有多少千米？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">(5/4) / 1</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">1 / (5/4)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 - (4/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">12 / (1/5)</gadget>
<output>60</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 / (2/3)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">60 * (3/2)</gadget>
<output>90</output>

<result>90</result>