For a pile of coal, 200 tons have been transported by truck. If another 50 tons are transported, it will account for exactly (1/6) of this pile of coal. How many tons are there in this pile of coal?
一堆煤，货车运走了200吨，如果再运走50吨，那么正好占这堆煤的(1/6)，这堆煤一共有多少吨？
<gadget id="calculator">200 + 50</gadget>
<output>250</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">250 / (1/6)</gadget>
<output>1_500</output>

<result>1_500</result>