A car is driving from place A to place B. If the speed is increased by (1/9), then it will arrive 1 hour earlier than the original time. If it travels 162 kilometers at the original speed, then increase the speed by (1/6) , Also arrived 1 driving ahead of the scheduled time. How many kilometers are there between A and B?
一辆汽车从甲地开往乙地，如果把车速提高(1/9)，那么要比原定时间提前1小时到达，如果以原速行驶162千米，再把速度提高(1/6)，也比原定时间提前1行驶到达．甲、乙两地相距多少千米？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

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

<gadget id="calculator">1 + (1/9)</gadget>
<output>10/9 = around 1.111111</output>

<gadget id="calculator">(10/9) / 1</gadget>
<output>10/9 = around 1.111111</output>

<gadget id="calculator">1 / (10/9)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1 - (9/10)</gadget>
<output>1/10 = around 0.1</output>

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

<gadget id="calculator">1 + (1/6)</gadget>
<output>7/6 = around 1.166667</output>

<gadget id="calculator">(7/6) / 1</gadget>
<output>7/6 = around 1.166667</output>

<gadget id="calculator">1 / (7/6)</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">1 - (6/7)</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">10 * (1/7)</gadget>
<output>10/7 = around 1.428571</output>

<gadget id="calculator">(10/7) - 1</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">(1/6) / (3/7)</gadget>
<output>7/18 = around 0.388889</output>

<gadget id="calculator">162 * (7/18) * 10 * (6/7)</gadget>
<output>540</output>

<result>540</result>