There is a batch of goods in the warehouse, and the weight ratio of the goods removed to the remaining goods is 2:7. If 64 tons are transported away, the remaining goods are only 5/9 of the original goods in the warehouse, and the original goods in the warehouse How many tons?
仓库有一批货物，运走的货物与剩下的货物的重量比为2：7，如果又运走64吨，那么剩下的货物只有仓库原有货物的(5/9)，仓库原有货物多少吨？
<gadget id="calculator">2 + 7</gadget>
<output>9</output>

<gadget id="calculator">7 / 9</gadget>
<output>7/9 = around 0.777778</output>

<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">(7/9) - (5/9)</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">64 / (2/9)</gadget>
<output>288</output>

<result>288</result>