A bee flies 24.6 kilometers at 1.5 hours, which is 2.5 times the speed of a butterfly. How many kilometers does the butterfly fly per hour?
一只蜜蜂1.5时飞行24.6千米，是一只蝴蝶飞行速度的2.5倍．这只蝴蝶每时飞行多少千米？
<gadget id="calculator">24.6 / 1.5 / 2.5</gadget>
<output>6.56</output>

<result>6.56</result>