It takes 2 hours for a car to drive from place A to place B. It travels the entire distance (3/7) in the first hour and 80 kilometers in the second hour. How many meters are there between places A and B?
一辆汽车从甲地开往乙地用了2小时，第一小时行了全程的(3/7)，第二小时行了80千米，甲乙两地相距多少米？
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">1 - (3/7)</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">80 / (4/7)</gadget>
<output>140</output>

<gadget id="calculator">140 * 1_000</gadget>
<output>140_000</output>

<result>140_000</result>