An engineering team paved a section of road. The original plan was to pave 9.6 kilometers per day, and it took 15 days to complete the pavement. The actual pavement was 2.4 kilometers more than the original plan per day. How many days will it actually take?
某工程队铺一段路，原计划每天铺9.6千米，15天铺完，实际每天比原计划多铺2.4千米，实际要用多少天铺完？
<gadget id="calculator">2.4 + 9.6</gadget>
<output>12</output>

<gadget id="calculator">15 / 12</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">9.6 * (5/4)</gadget>
<output>12</output>

<result>12</result>