The oil yield of peanuts is 35%, how many kilograms of peanuts are needed to squeeze out 3150 kilograms of peanut oil.
花生的出油率是为35%，要榨出3150千克的花生油需要多少千克花生．
<gadget id="calculator">35 / 100</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">3_150 / (7/20)</gadget>
<output>9_000</output>

<result>9_000</result>