There are 600g of salt water containing 8% salt, how many grams of water need to be evaporated to find the salt water ratio of 3:17?
有含盐8%的食盐水600g，要想得盐与水的比为3：17的盐水需蒸发多少克水．
<gadget id="calculator">8 / 100</gadget>
<output>2/25 = around 0.08</output>

<gadget id="calculator">3 + 17</gadget>
<output>20</output>

<gadget id="calculator">3 / 20</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">(2/25) / (3/20)</gadget>
<output>8/15 = around 0.533333</output>

<gadget id="calculator">600 * (8/15)</gadget>
<output>320</output>

<gadget id="calculator">600 - 320</gadget>
<output>280</output>

<result>280</result>