There are two warehouses. The grain in warehouse A accounts for 62.5% of that in warehouse B. If 42 tons of grain are shipped out from warehouse A, and 45% of the grain in warehouse B is shipped out, the grain in the two warehouses is equal. How many tons of grain is originally stored in warehouse B? ．
两个仓库，甲仓库存粮占乙仓库的62.5%，如甲仓库中运出粮食42吨，乙仓库中的粮食运出45%，则两个仓库中的粮食相等，乙仓库中原来存粮多少吨．
<gadget id="calculator">62.5 / 100</gadget>
<output>0.625</output>

<gadget id="calculator">45 / 100</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">1 - (9/20)</gadget>
<output>11/20 = around 0.55</output>

<gadget id="calculator">0.625 - (11/20)</gadget>
<output>0.075</output>

<gadget id="calculator">42 / 0.075</gadget>
<output>560</output>

<result>560</result>