The distance between A and B is 260km. Cars A and B leave opposite each other at the same time and meet after 2.5 hours. Car A travels 48 km per hour, how many kilometers per hour does Car B travel? (column equation solution)
A、B两地相距260km．甲、乙两车同时从两地相对开出，经过2.5小时相遇．甲车每小时行48km，乙车每小时行多少千米？(列方程解答)
<gadget id="calculator">48 * 2.5</gadget>
<output>120</output>

<gadget id="calculator">260 - 120</gadget>
<output>140</output>

<gadget id="calculator">140 / 2.5</gadget>
<output>56</output>

<result>56</result>