When a table tennis ball falls from a height, it can bounce up to about 2/5 of its falling height. If a table tennis ball falls from a height of 25 meters, it bounces up and falls again. What is the height of the third bounce?
乒乓球从高出落下，约能弹起落下高度的(2/5)，如果一个乒乓球从25米高的地方落下，那么弹起后再落下，第三次弹起的高度是多少？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">25 * (2/5) * (2/5) * (2/5)</gadget>
<output>8/5 = around 1.6</output>

<result>8/5 = around 1.6</result>