A helicopter travels 400 kilometers per hour, and a train travels 80 kilometers per hour. How many times does this helicopter travel kilometers per hour than the train?
一架直升飞机每小时飞行400千米，一列火车每小时行80千米．这架直升飞机每小时行的千米数是火车的多少倍？
<gadget id="calculator">400 / 80</gadget>
<output>5</output>

<result>5</result>