A commercial station brought in a batch of brown sugar, sold 350 kg on the first day, and sold 300 kg on the second day, and just sold (2/5) of this batch of brown sugar in two days, how many kg of this batch of brown sugar?
某商站运进一批红糖，第一天卖出350千克，第二天卖出300千克，两天正好卖出了这批红糖的(2/5)，这批红糖有多少千克？
<gadget id="calculator">350 + 300</gadget>
<output>650</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">650 / (2/5)</gadget>
<output>1_625</output>

<result>1_625</result>