A bee flies 9.3 kilometers in 0.5 hours, which is 2.4 times faster than a butterfly. How many kilometers does the butterfly fly per hour?
一只蜜蜂0.5小时飞行9.3千米，是一只蝴蝶飞行速度的2.4倍．这只蝴蝶每小时飞行多少千米？
<gadget id="calculator">9.3 / 0.5 / 2.4</gadget>
<output>7.75</output>

<result>7.75</result>