There is a kind of drink that is made of strawberry powder and milk at a ratio of 1:20. Now, 800g of milk is used to make such a drink. How many grams of strawberry powder should be used?
有种饮料是用草莓粉和牛奶按1：20调配而成的，现用800g牛奶调制成这样的饮料，要用草莓粉多少克？
<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">(1/20) * 800</gadget>
<output>40</output>

<result>40</result>