The east and west cities are 120 kilometers apart. Two cars, A and B, drive towards each other from the two cities at the same time. When they meet, car A travels more than half of the whole journey, which is more than 10 kilometers. When they meet, how many kilometers does car B travel?
东西两城相距120千米．甲、乙两辆汽车各自从两城同时相向驶出，相遇时甲车行了全程的一半还多10千米，相遇时，乙车行了多少千米．
<gadget id="calculator">120 / 2</gadget>
<output>60</output>

<gadget id="calculator">60 + 10</gadget>
<output>70</output>

<gadget id="calculator">120 - 70</gadget>
<output>50</output>

<result>50</result>