A table tennis ball falls from a high altitude, and the height of each bounce is (2/5) of the height of the fall. If it falls from a height of 25 meters, what is the height of the second fall and bounce?
乒乓球高空落下，每次弹起的高度是落下的高度的(2/5)，如果从25米的高落下，那么第二次落下又弹起的高度是多少？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">25 * (2/5) * (2/5)</gadget>
<output>4</output>

<result>4</result>