Two trains, A and B, depart from two places 1450 kilometers apart. After 8 hours, the distance between the two trains is 250 kilometers. It is known that car A travels 80 kilometers per hour, what is the speed of car B?
甲乙两列火车从相距1450千米的两地相对开出，8小时后两车相距250千米．已知甲车每小时行驶80千米，乙车的速度是多少？
<gadget id="calculator">1_450 + 250</gadget>
<output>1_700</output>

<gadget id="calculator">1_700 / 8</gadget>
<output>425/2 = around 212.5</output>

<gadget id="calculator">(425/2) - 80</gadget>
<output>265/2 = around 132.5</output>

<result>265/2 = around 132.5</result>