The oil yield of peanut kernels is 42%. How many kilograms of peanut oil can be squeezed out by an oil mill using 2000 kilograms of peanut kernels.
花生仁的出油率是42%，一个榨油厂用2000千克的花生仁榨油，能榨出多少千克花生油．
<gadget id="calculator">42 / 100</gadget>
<output>21/50 = around 0.42</output>

<gadget id="calculator">2_000 * (21/50)</gadget>
<output>840</output>

<result>840</result>