It took 11 hours from Nanjing to Beijing, and the speed of the train is about 155 kilometers per hour. How many kilometers is it from Nanjing to Beijing?
从南京到北京用了11小时，火车的速度大约是155千米/小时，从南京到北京大约有多少千米？
<gadget id="calculator">155 * 11</gadget>
<output>1_705</output>

<result>1_705</result>