Plant trees on one side of a 125-meter-long road (both head and tail), and plant a tree every 5 meters. How many trees can be planted?
在一条长125米的道路一边种树(头尾都种)，每隔5米种一棵树，可以种多少棵树？
<gadget id="calculator">125 / 5</gadget>
<output>25</output>

<gadget id="calculator">25 + 1</gadget>
<output>26</output>

<result>26</result>