Train A is 290 meters long and travels 20 meters per second. Train B is 250 meters long and travels 25 meters per second. The two trains are traveling in the same direction on parallel tracks and just pass a 900-meter iron bridge. Leaving one end of the bridge, and at the same time, the locomotive of train B just drives to the other end of the bridge, how long does it take for train B to completely overtake train A?
甲火车长290米，每秒行20米，乙火车长250米，每秒行25米，两列火车在平行的轨道上同向行驶，刚好经过一座900米的铁桥，当甲火车车尾离开桥的一端，同时乙火车车头刚好驶上桥的另一端，经过多长时间乙火车完全超过甲火车？
<gadget id="calculator">290 + 250 + 900</gadget>
<output>1_440</output>

<gadget id="calculator">25 - 20</gadget>
<output>5</output>

<gadget id="calculator">1_440 / 5</gadget>
<output>288</output>

<result>288</result>