There is a kind of bird that does not stop on the way when it migrates. It flies 3600 kilometers at 40 o'clock. It is called the marathon champion among birds. How many kilometers does it fly per hour?
有一种鸟在迁移时，途中可以不停留，40时飞行3600千米，被称为鸟类中的马拉松冠军，它每时大约飞行多少千米？
<gadget id="calculator">3_600 / 40</gadget>
<output>90</output>

<result>90</result>