A train 200 meters long travels 15 meters per second. How many seconds does it take to pass a bridge 850 meters long?
有一列长200米的火车，每秒行驶15米．它通过一座长850米的大桥需要多少秒．
<gadget id="calculator">850 + 200</gadget>
<output>1_050</output>

<gadget id="calculator">1_050 / 15</gadget>
<output>70</output>

<result>70</result>