A car wants to transport a batch of goods from A to B. First, it travels at a speed of 50 kilometers per hour for 3 hours. If it continues at this speed, it will arrive 2 hours later than the scheduled time. Therefore, every hour The speed of the car is changed to 80 kilometers, and the result is that it arrives at place B 1 hour earlier. How many kilometers is the distance between places A and B?
一辆车要把一批货物从甲地运往乙地，先用每小时50千米的速度行驶了3小时，如果按这个速度行驶下去，将比预定的时间晚2个小时到达，因此每小时的速度改为80千米，结果提前1小时到乙地，甲乙两地相距多少千米？
<gadget id="calculator">50 * 2</gadget>
<output>100</output>

<gadget id="calculator">80 * 3</gadget>
<output>240</output>

<gadget id="calculator">50 * 3</gadget>
<output>150</output>

<gadget id="calculator">80 - 150</gadget>
<output>-70</output>

<gadget id="calculator">100 + 240 + (-70)</gadget>
<output>270</output>

<gadget id="calculator">80 - 50</gadget>
<output>30</output>

<gadget id="calculator">270 / 30</gadget>
<output>9</output>

<gadget id="calculator">9 + 2</gadget>
<output>11</output>

<gadget id="calculator">50 * 11</gadget>
<output>550</output>

<result>550</result>