Road builders have to build drainage wells on a 1,500-meter-long road section, both at the beginning and end of the road. The distance between two adjacent drainage wells is 25 meters, how many drainage wells need to be built in this section of the road?
筑路工人要在1500米长的路段上修建排水井，路的起点和终点都修．每相邻两个排水井相距25米，这段路需要修建多少个排水井？
<gadget id="calculator">1_500 / 25</gadget>
<output>60</output>

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

<result>61</result>