In order to beautify the urban environment, the garden department planted a total of 25 ginkgo trees from the beginning to the end on one side of a small road. The distance between two adjacent ginkgo trees is 8.5 meters. How long is this road?
为了美化城市环境，园林部门在一条小路的一边从头到尾共种了25棵银杏树，每相邻两棵银杏树间隔8.5米，这条路长多少米？
<gadget id="calculator">25 - 1</gadget>
<output>24</output>

<gadget id="calculator">24 * 8.5</gadget>
<output>204</output>

<result>204</result>