The distance between AB and AB is 190 kilometers. Cars A and B are traveling towards each other from the two places. Car A travels 42 kilometers per hour. After driving for 2.5 hours, the two cars meet. How many kilometers per hour does car B travel?
AB两地相距190千米，甲、乙两车分别从两地相向而行，甲车每小时行42千米，行了2.5小时后两车相遇，乙车每小时行多少千米？
<gadget id="calculator">190 / 2.5</gadget>
<output>76</output>

<gadget id="calculator">76 - 42</gadget>
<output>34</output>

<result>34</result>