A bee flies 124.8 kilometers in 4 hours. The speed of a bee is twice that of a butterfly. How many kilometers can a butterfly fly per hour?
蜜蜂4小时飞行124.8千米，蜜蜂的速度是蝴蝶的2倍，蝴蝶每小时能飞行多少千米？
<gadget id="calculator">124.8 / 4 / 2</gadget>
<output>15.6</output>

<result>15.6</result>