Put 10 grams of salt in 90 grams of water, what is the percentage of salt in the salt water? If the salt content is to be higher than the calculated value, what method should be adopted?
把10克盐放在90克水中，盐水的含盐率是百分之几？如果要使含盐率高于算出的得数，应采用什么办法？
<gadget id="calculator">90 + 10</gadget>
<output>100</output>

<gadget id="calculator">10 / 100</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>