A road construction team plans to pave a road of 1.4 kilometers per day, and it will be completed in 30 days. Actually, it will pave 2.8 kilometers per day. How many days can it actually be paved?
一个筑路队铺一条公路，计划每天铺1.4千米，30天铺完，实际每天铺2.8千米，实际几天可以铺完？
<gadget id="calculator">1.4 * 30</gadget>
<output>42</output>

<gadget id="calculator">42 / 2.8</gadget>
<output>15</output>

<result>15</result>