The fruit shop has 3 boxes of oranges weighing 52.5 kg and 3 boxes of apples weighing 82.5 kg. On average, how much does a box of apples weigh more than a box of oranges?
水果店有3箱橘子共重52.5千克，3箱苹果共重82.5千克，平均一箱苹果比一箱橘子重多少千克？
<gadget id="calculator">82.5 / 3</gadget>
<output>27.5</output>

<gadget id="calculator">52.5 / 3</gadget>
<output>17.5</output>

<gadget id="calculator">27.5 - 17.5</gadget>
<output>10</output>

<result>10</result>