A pigeon flies 256.5km in 3.8 hours, and a swallow flies 94.5km per hour. How much more does the swallow fly than the dove per hour?
一只鸽子3.8小时飞行256.5km，一只燕子每小时飞行94.5km，燕子每小时比鸽子多飞多少千米？
<gadget id="calculator">256.5 / 3.8</gadget>
<output>67.5</output>

<gadget id="calculator">94.5 - 67.5</gadget>
<output>27</output>

<result>27</result>