road repair team is repairing a road. They work for 3.5 hours in the morning and build a road of 164.5 meters. They work for 4.5 hours in the afternoon and build a road of 206.1 meters. Is the road repair speed faster in the morning or in the afternoon? How many meters faster?
一支修路队正在修一条公路，上午工作3.5小时，修路164.5米；下午工作4.5小时，修路206.1米，上午修路速度快还是下午修路速度快？快多少米？
<gadget id="calculator">164.5 / 3.5</gadget>
<output>47</output>

<gadget id="calculator">206.1 / 4.5</gadget>
<output>45.8</output>

<gadget id="calculator">47 - 45.8</gadget>
<output>1.2</output>

<result>1.2</result>