If a person goes to work alone, if the speed is increased by 10% according to the original speed, the arrival time will be 1 hour earlier; if the speed is increased by 20% after driving for 120 kilometers, the arrival time will be 1 hour earlier. How far is the home from the unit?
一个人去上班，如果按原速提高10%的速度会早到1小时，如果按原速先行驶120千米后，再提高20%的速度会早到1小时．问家离单位有多远？
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 + (1/10)</gadget>
<output>11/10 = around 1.1</output>

<gadget id="calculator">1 / (11/10)</gadget>
<output>10/11 = around 0.909091</output>

<gadget id="calculator">1 - (10/11)</gadget>
<output>1/11 = around 0.090909</output>

<gadget id="calculator">1 / (1/11)</gadget>
<output>11</output>

<gadget id="calculator">24 * 11</gadget>
<output>264</output>

<result>264</result>