The store shipped 4 boxes of table tennis balls, with a total value of 240 yuan. If each table tennis ball is 2.5 yuan, how many table tennis balls are there in each box?
商店运来4箱乒乓球，总价值240元．如果每个乒乓球2.5元，那么每箱有几个乒乓球？
<gadget id="calculator">240 / 4 / 2.5</gadget>
<output>24</output>

<result>24</result>