A passenger car and a truck leave from A and B at the same time and travel towards each other. After driving for 11 hours, the passenger car still has the full distance (1/9) from point B; the truck only exceeds the midpoint by 176 kilometers at this time. It is also known that passenger cars travel 12 kilometers per hour more than trucks. How many kilometers is the road between A and B?
一辆客车和一辆货车同时由A，B两地开出，相向而行．行驶11小时后，客车离B地还有全程的(1/9)；货车此时只超过中点176千米．又知客车比货车每小时多行12千米．求A，B两地间公路长多少千米？
<gadget id="calculator">11 * 12</gadget>
<output>132</output>

<gadget id="calculator">176 + 132</gadget>
<output>308</output>

<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 - (1/9) - (1/2)</gadget>
<output>7/18 = around 0.388889</output>

<gadget id="calculator">308 / (7/18)</gadget>
<output>792</output>

<result>792</result>