The distance between A and B is 560 kilometers. Two cars drive from the two places at the same time. They meet each other in 4 hours. Car A travels 75 kilometers per hour. How many kilometers does B travel per hour?
甲乙两地相距560千米，两辆汽车同时从两地相对开出，4小时相遇，甲车每小时行驶75千米，乙车每小时行使多少千米？
<gadget id="calculator">560 / 4</gadget>
<output>140</output>

<gadget id="calculator">140 - 75</gadget>
<output>65</output>

<result>65</result>