A pile of coal is transported 16 tons per day, and this pile of coal (3/8) is transported in 3 days, and the remaining coal is transported 25% more per day. How many days will it take to transport it?
一堆煤每天运16吨，3天运了这堆煤(3/8)，余下的每天多运25%，还要几天才能运完？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">16 * (3/8)</gadget>
<output>6</output>

<gadget id="calculator">16 - 6</gadget>
<output>10</output>

<gadget id="calculator">6 / 3</gadget>
<output>2</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">2 * (5/4)</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">10 / (5/2)</gadget>
<output>4</output>

<result>4</result>