Two cars, A and B, start from point A at the same time and go to point B along a road. After 2.5 hours, car B lags behind car A by 120 kilometers. Car A travels 110 kilometers per hour, how many kilometers per hour does Car B travel?
甲乙两辆小汽车同时从A地出发，沿用一条公路前往B地．经过2.5小时后，乙汽车落后甲汽车120千米．甲汽车每小时行110千米，乙汽车每小时行多少千米？
<gadget id="calculator">110 - 40</gadget>
<output>70</output>

<result>70</result>