A car drives from place A to place B. It drives the whole distance (3/8) on the first day and the rest of the distance (3/8) on the second day. At this time, it is still 500 kilometers away from place B. , how many kilometers in total?
一辆汽车从甲地开往乙地，第一天开了全程的(3/8)，第二天走了剩下路程的(3/8)，这时，距离乙地还有500千米，全程共有多少千米？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (3/8)</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">(5/8) * (3/8)</gadget>
<output>15/64 = around 0.234375</output>

<gadget id="calculator">1 - (3/8) - (15/64)</gadget>
<output>25/64 = around 0.390625</output>

<gadget id="calculator">500 / (25/64)</gadget>
<output>1_280</output>

<result>1_280</result>