When disinfection personnel use peracetic acid for disinfection, they should configure disinfection water according to the ratio of liquid medicine to water of 1:200. Now he puts 0.3 kg of peracetic acid solution in 50 kg of water. To make the disinfectant meet the requirements, how many kg of water should be added below?
消毒人员用过氧乙酸消毒时，要按照药液与水的比为1：200来配置消毒水．现在他在50千克水中放入0.3千克的过氧乙酸药液，要使消毒水符合要求，下面加入多少千克的水
<gadget id="calculator">1 / 200</gadget>
<output>1/200 = around 0.005</output>

<gadget id="calculator">0.3 / (1/200)</gadget>
<output>60</output>

<gadget id="calculator">60 - 50</gadget>
<output>10</output>

<result>10</result>