On the side of a 48-meter-long road, plant a poplar every 6 meters, and plant both ends, how many trees can be planted.
在一条长48米的马路一旁每隔6米栽一棵杨树，两头都栽，可以栽多少棵．
<gadget id="calculator">48 / 6</gadget>
<output>8</output>

<gadget id="calculator">8 + 1</gadget>
<output>9</output>

<result>9</result>