total of 50 trees are planted on both sides of a road, and the distance between every two adjacent trees is 6 meters. What is the length of the road in meters?
在一条马路两边共植树50棵，每相邻两棵之间相隔6米，这条马路长多少米．
<gadget id="calculator">50 / 2</gadget>
<output>25</output>

<gadget id="calculator">25 - 1</gadget>
<output>24</output>

<gadget id="calculator">24 * 6</gadget>
<output>144</output>

<result>144</result>