A solution with a concentration of 97% is diluted to a concentration of 48.5% by adding 10,000 grams of water. How many grams of water are there in the original solution?
有一种溶液浓度为97%，加入10000克水后稀释为浓度48.5%，原来溶液中有多少克水．
<gadget id="calculator">48.5 / 100</gadget>
<output>0.485</output>

<gadget id="calculator">0.485 * 10_000</gadget>
<output>4_850</output>

<gadget id="calculator">97 / 100</gadget>
<output>97/100 = around 0.97</output>

<gadget id="calculator">(97/100) - 0.485</gadget>
<output>0.485</output>

<gadget id="calculator">4_850 / 0.485</gadget>
<output>10_000</output>

<gadget id="calculator">1 - (97/100)</gadget>
<output>3/100 = around 0.03</output>

<gadget id="calculator">10_000 * (3/100)</gadget>
<output>300</output>

<result>300</result>