A bee flies 9.3 kilometers in 0.5 hours, a butterfly flies 7.75 kilometers per hour, how many times does a bee fly faster than a butterfly per hour?
一只蜜蜂0.5小时飞行9.3千米，一只蝴蝶每小时飞行7.75千米，一只蜜蜂每小时飞行的速度是蝴蝶的多少倍？
<gadget id="calculator">9.3 / 0.5</gadget>
<output>18.6</output>

<gadget id="calculator">18.6 / 7.75</gadget>
<output>2.4</output>

<result>2.4</result>