It takes 8 hours for car A to go from point A to point B, and it takes 6 hours for car B to go from point B to point A. Both cars A and B drive from both places A and B at the same time. When they meet, they are 240 kilometers away from point B. How many kilometers per hour does the car travel on average?
甲车从A地到B地需要8小时，乙车从B地到A地需要6小时，甲、乙两车同时从A、B两地相对开出，相遇时距离B地240千米，乙车平均每小时行多少千米？
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/8) + (1/6)</gadget>
<output>7/24 = around 0.291667</output>

<gadget id="calculator">1 / (7/24)</gadget>
<output>24/7 = around 3.428571</output>

<gadget id="calculator">240 / (24/7)</gadget>
<output>70</output>

<result>70</result>