Swifts are the fastest birds flying long distances. A swift flies 540 kilometers in 3 hours, and a carrier pigeon flies 72 kilometers per hour. How many times faster do swifts fly than homing pigeons?
雨燕是长距离飞行最快的鸟．一只雨燕3小时飞行540千米，一只信鸽每小时飞行72千米．雨燕飞行的速度是信鸽的多少倍？
<gadget id="calculator">540 / 3 / 72</gadget>
<output>5/2 = around 2.5</output>

<result>5/2 = around 2.5</result>