Warehouse A stores 20 tons more grain than Warehouse B. If (1/5) of the grain stored in warehouse A is transported to warehouse B, then the quantity of grain stored in the two warehouses is equal. How many tons of grain is stored in Warehouse A?
甲仓库比乙仓库多存粮20吨．如果把甲仓库所存粮食的(1/5)运进乙仓库，那么两个仓库存粮的数量相等．甲仓库存粮多少吨．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/5) * 2</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">20 / (2/5)</gadget>
<output>50</output>

<result>50</result>