Car A and car B start from two places at the same time and drive towards each other. When car A travels to the point (8/17) of the whole journey, it meets car B. Car A travels 40 kilometers per hour, how many kilometers per hour does Car B travel?
甲、乙两车从两地同时出发，相向而行，当甲车行到全程的(8/17)处与乙车相遇．甲车每小时行40千米，乙车每小时行多少千米．
<gadget id="calculator">8 / 17</gadget>
<output>8/17 = around 0.470588</output>

<gadget id="calculator">1 - (8/17)</gadget>
<output>9/17 = around 0.529412</output>

<gadget id="calculator">(8/17) / (9/17)</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">1 / (8/9)</gadget>
<output>9/8 = around 1.125</output>

<gadget id="calculator">40 * (9/8)</gadget>
<output>45</output>

<result>45</result>