Car A and car B leave opposite directions at the same time from places A and B, and meet each other after 5 hours. Then, they continue to drive at the original speed and direction for 3 hours. At this time, car A is still 135 kilometers away from point B, and car B is still 175 kilometers away from point A. How many kilometers are there between A and B?
A车和B车同时从甲、乙两地相向开出，经过5小时相遇．然后，它们又各自按原速度原方向继续行驶3小时，这时A车离乙地还有135千米，B车离甲地还有175千米．甲乙两地相距多少千米？
<gadget id="calculator">135 + 175</gadget>
<output>310</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">310 / (2/5)</gadget>
<output>775</output>

<result>775</result>