Cars A and B are driving towards each other from places a and b which are 240 kilometers apart at the same time. The two cars meet each other in 0.8 hours. It is known that the speed of car A is 1.5 times that of car B. How many kilometers does car B travel per hour?
甲乙两车同时从相距240千米的a、b两地相对而行，0.8小时两车相遇，已知甲车的速度是乙车的1.5倍，乙车每小时行多少千米？
<gadget id="calculator">1.5 + 1</gadget>
<output>2.5</output>

<gadget id="calculator">240 / 0.8 / 2.5</gadget>
<output>120</output>

<result>120</result>