A car drives from city A to city B. If the speed is increased by 20%, it can reach city B one hour earlier than the original time; It happens that you can also arrive at city B 1 hour earlier than the scheduled time. How many kilometers is the distance between cities A and B?
一辆汽车从A城市开往B城市，如果把速度提高20%，则可比原定的时间提前1小时到达B城市；如果按原来的速度先行驶80千米后，再将速度提高30%，恰巧也能比原定的时间提前1小时到达B城市，A、B两城市之间的距离是多少千米？
<gadget id="calculator">6 - 5</gadget>
<output>1</output>

<gadget id="calculator">1 / 1</gadget>
<output>1</output>

<gadget id="calculator">6 * 1</gadget>
<output>6</output>

<gadget id="calculator">13 - 10</gadget>
<output>3</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">13 * (1/3)</gadget>
<output>13/3 = around 4.333333</output>

<gadget id="calculator">6 - (13/3)</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">80 / (5/3)</gadget>
<output>48</output>

<gadget id="calculator">48 * 6 * 1</gadget>
<output>288</output>

<result>288</result>