car and a truck drive back from the same place at the same time. After 2.5 hours, the two cars arrive at A and B respectively. A car travels 70 kilometers per hour, which is 16 kilometers per hour faster than a truck. How many miles is the distance between A and B? (column equation solution)
一辆小轿车与一辆货车从同一地点同时背向而行，经过2.5小时后两车分别到达甲、乙两城．小轿车每小时行70千米，比货车每小时快16千米．甲、乙两城相距多少千米？(列方程解答)
<gadget id="calculator">70 - 15</gadget>
<output>55</output>

<gadget id="calculator">70 + 55</gadget>
<output>125</output>

<gadget id="calculator">1 / 2.5</gadget>
<output>0.4</output>

<gadget id="calculator">125 / 0.4</gadget>
<output>312.5</output>

<result>312.5</result>