The highway from Huzhou to Shanghai has a total length of 168 kilometers. Two cars, A and B, drive from the two cities at the same time. After 1.5 hours of intersection, car A travels 58 kilometers per hour. How many kilometers does car B travel per hour?
湖州到上海的公路全长168千米，甲乙两辆汽车分别从两城同时相对开出，经过1.5小时交汇，甲车每小时行驶58千米．乙车每小时行驶多少千米？
<gadget id="calculator">168 / 1.5</gadget>
<output>112</output>

<gadget id="calculator">112 - 58</gadget>
<output>54</output>

<result>54</result>