A pile of pears weighs 252 kilograms. After taking out 12 kilograms, the remaining ones are packed in 6 boxes on average. How many kilograms are packed in each box?
一堆梨重252千克，取出12千克后，剩下的平均装在6个箱子里，每箱装多少千克？
<gadget id="calculator">252 - 12</gadget>
<output>240</output>

<gadget id="calculator">240 / 6</gadget>
<output>40</output>

<result>40</result>