The speed of a passenger car is 60 kilometers per hour, and the speed of a freight car is 45 kilometers per hour. The freight car is 105 meters longer than the passenger car. If the two cars are driving on parallel tracks and the passenger car passes the freight car from behind, the time for them to meet is 1 30 seconds. 1 Find the length of the two cars. 2 If two vehicles are traveling in the same direction, how long will it take to meet?
一列客车速度是每小时60千米，一列货车速度是每小时45千米，货车比客车长105米，如果两车在平行的轨道上行驶，客车从后面赶过货车，它们交会的时间是1分30秒．1求两车的长度．2如果两车相向而行，那么交会的时间是多少？
<gadget id="calculator">3 / 14</gadget>
<output>3/14 = around 0.214286</output>

<result>3/14 = around 0.214286</result>