Xiao Ming is 1.5 meters tall, and his shadow is 2.5 meters long. If the shadow of a tree is measured to be 10 meters long at the same time and place, what is the actual height of the tree?
小明身高1.5米，他的影子长2.5米．如果同时间、同地点测得树的影子长10米，这棵树实际高多少米．
<gadget id="calculator">1.5 * 10</gadget>
<output>15</output>

<gadget id="calculator">15 / 2.5</gadget>
<output>6</output>

<result>6</result>