A and B start from A and B at the same time and walk towards each other. A travels for 6 hours and meets B at a distance of 12 kilometers from the midpoint (the meeting point is close to B). B travels 42 kilometers per hour Meters, how many kilometers does A travel per hour?
甲、乙两人同时从A、B两地出发，相向而行，甲行6小时后，与乙在距中点12千米的地方相遇(相遇地点靠近B地)，乙每小时行42千米，甲每小时行多少千米？
<gadget id="calculator">42 * 6</gadget>
<output>252</output>

<gadget id="calculator">12 * 2</gadget>
<output>24</output>

<gadget id="calculator">252 + 24</gadget>
<output>276</output>

<gadget id="calculator">276 / 6</gadget>
<output>46</output>

<result>46</result>