There is a pile of 50 tons of coal, 8 tons are transported by a large truck, and 3 tons are transported by a small truck. If the large truck is used first, and the rest is transported by a small truck, how many times will it take to finish?
有一堆50吨的煤，大车运一次8吨，小车运一次3吨，如果先用大车运一次，剩下的用小车运，还需几次能运完？
<gadget id="calculator">50 - 8</gadget>
<output>42</output>

<gadget id="calculator">42 / 3</gadget>
<output>14</output>

<result>14</result>