1 kg of salt water contains 50 grams of salt, which is the amount of salt water.
1千克盐水含盐50克，盐是盐水的多少．
<gadget id="calculator">50 / 1_000</gadget>
<output>1/20 = around 0.05</output>

<result>1/20 = around 0.05</result>