There were originally 71 fir poles on a line, and the distance between the poles was 25 meters. Now all the fir poles on the original line are replaced with 51 concrete poles. What is the distance between the poles in meters?
某线路原有杉木电线杆71根，杆与杆之间的间隔为25米，今把原线路的杉木杆全部都换成51根水泥杆，此时杆与杆之间的距离为多少米．
<gadget id="calculator">71 - 1</gadget>
<output>70</output>

<gadget id="calculator">70 * 25</gadget>
<output>1_750</output>

<gadget id="calculator">51 - 1</gadget>
<output>50</output>

<gadget id="calculator">1_750 / 50</gadget>
<output>35</output>

<result>35</result>