The oil yield of peanuts is 38%. How many kilograms of peanuts are used to squeeze out 1900kg of peanut oil in an oil mill?
花生的出油率是38%，一个榨油厂榨出1900kg花生油，用了多少千克花生？
<gadget id="calculator">38 / 100</gadget>
<output>19/50 = around 0.38</output>

<gadget id="calculator">1_900 / (19/50)</gadget>
<output>5_000</output>

<result>5_000</result>