It is known that □+□+□=69, □*△=115, ○/△=24, then ○=how much.
已知□+□+□=69，□*△=115，○/△=24，那么○=多少．
<gadget id="calculator">69 / 3</gadget>
<output>23</output>

<gadget id="calculator">115 / 23</gadget>
<output>5</output>

<gadget id="calculator">24 * 5</gadget>
<output>120</output>

<result>120</result>