There are 61 electric poles in a row, and the distance between two adjacent electric poles is 20 meters. Now it is planned to dismantle all the electric poles except two at both ends, and erect 49 electric poles in the middle at equal distances. Find What is the distance between two adjacent utility poles?
有一排电线杆共61根，每相邻两根电线杆之间的距离是20米，现在计划除两端2根电线杆外，其余的全部拆除，重新在中间等距离的竖立49根，求相邻的两根电线杆之间的距离是多少米？
<gadget id="calculator">61 - 1</gadget>
<output>60</output>

<gadget id="calculator">2 - 1</gadget>
<output>1</output>

<gadget id="calculator">49 + 1</gadget>
<output>50</output>

<gadget id="calculator">20 / 50</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">60 * (2/5)</gadget>
<output>24</output>

<result>24</result>