A trail is 180 meters long, and one tree is planted every 3 meters from the beginning to the end on one side of it. How many trees can be planted in total?
一条小道长180米，在它的一侧从头到尾每隔3米植树一棵，一共可植树多少棵？
<gadget id="calculator">180 / 3</gadget>
<output>60</output>

<gadget id="calculator">60 + 1</gadget>
<output>61</output>

<result>61</result>