Cars A and B are traveling toward each other from stations A and B at the same time. When they meet, the ratio of the distance traveled by cars A and B is 3:5. After meeting, car A continues to drive at the original speed of 135.7km per hour, and it takes another 4 hours to reach point B. Find the time when car A and car B meet?
甲、乙两车同时从A、B两站相向而行，相遇时甲乙两车所行路程比是3：5．相遇后，甲车继续以原来每小时135.7km的速度行驶，又用了4小时到达B地，求甲、乙两车相遇时间？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(4/5) * 3</gadget>
<output>12/5 = around 2.4</output>

<result>12/5 = around 2.4</result>