After a basketball falls from a height, it bounces up to 3/5 of its original height each time it touches the ground. If a basketball falls from a 30-meter-high building, what is the height of its third bounce?
篮球从高处下落后，每次接触地面后弹起的高度是原来高度的(3/5)，如果一个篮球从30米的楼上落下，它第三次弹起的高度是多少米？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">30 * (3/5) * (3/5) * (3/5)</gadget>
<output>162/25 = around 6.48</output>

<result>162/25 = around 6.48</result>