The distance between places A and B is 80km. Car A and car B drive from place A to place B at the same time. When car B walks 3/4 of the way, the distance between car A and car B is 10km. How much?
A，B两地相距80km，甲、乙两车从A地同时出发驶往B地，当乙车走出全程的(3/4)时，甲与乙车相距10km，甲车走出全程的几分之几？
<gadget id="calculator">60 - 10</gadget>
<output>50</output>

<gadget id="calculator">50 / 80</gadget>
<output>5/8 = around 0.625</output>

<result>5/8 = around 0.625</result>