Dissolve 100 grams of salt in water to make brine with a salt content of 12.5%. If you add 200 grams of water, what is the salinity of the brine?
把100克的盐溶在水中，制成含盐率为12.5%的盐水．如果再加200克水，这时盐水的含盐率为多少？
<gadget id="calculator">12.5 / 100</gadget>
<output>0.125</output>

<gadget id="calculator">100 / 0.125</gadget>
<output>800</output>

<gadget id="calculator">800 + 200</gadget>
<output>1_000</output>

<gadget id="calculator">100 / 1_000</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(1/10) * 1</gadget>
<output>1/10 = around 0.1</output>

<result>1/10 = around 0.1</result>