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The king of mathematics in salt
Teenagers don't cry I teach you math.

Think of it this way, no matter how much salt water there is.

You add salt to a glass of water.

To a certain extent, the ratio of salt to brine will be 1: 10, right?

Considering that salt water is 10, salt is 1 0, and water is naturally 9 parts.

100g saline, of course 10g salt, 90g water.