There are 2,000 kilograms of salt water with a water content of 90%. After being exposed to the sun for a day, the water content is the original (8/9). How much is the weight of the salt water at this time?
有含水量90%的盐水2000千克，在外面被太阳晒了一天后，含水量是原来的(8/9)，这时盐水重量是多少千克？
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1 - (9/10)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">2_000 * (1/10)</gadget>
<output>200</output>

<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">2_000 * (9/10) * (8/9)</gadget>
<output>1_600</output>

<gadget id="calculator">200 + 1_600</gadget>
<output>1_800</output>

<result>1_800</result>