Car A and car B depart from two places 780 kilometers apart at the same time, and meet each other 6.5 hours later. Car A travels 65 kilometers per hour, how many kilometers per hour does Car B travel? (solution with equation)
甲车和乙车同时从相距780千米的两地相对开出，6.5小时后相遇．甲车每小时行65千米，乙车每小时行多少千米？(用方程解答)
<gadget id="calculator">780 / 6.5</gadget>
<output>120</output>

<gadget id="calculator">120 - 65</gadget>
<output>55</output>

<result>55</result>