chemical fertilizer factory produces a batch of fertilizers, which are shipped out three times. The first shipment (1/5) is 200 tons more than the total, the second shipment is the first (1/4), and the third shipment is 1/4. 650 tons, how many tons of this batch of fertilizers?
一化肥厂生产一批化肥，分三次运出，第一次运出总数的(1/5)还多200吨，第二次运出是第一次的(1/4)，第三次运出650吨，这批化肥共有多少吨？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">200 * (1/4)</gadget>
<output>50</output>

<gadget id="calculator">200 + 50 + 650</gadget>
<output>900</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/5) * (1/4)</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1 - (1/5) - (1/20)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">900 / (3/4)</gadget>
<output>1_200</output>

<result>1_200</result>