There are 25 telephone poles in a row on the highway. The distance between two adjacent poles was originally 45 meters, but now it is changed to 60 meters. How many poles can be left without moving.
公路上一排电线杆，共25根，每相邻两根间的距离原来是45米，现在要改成60米，可以有多少根不需要移动．
<gadget id="calculator">25 - 1</gadget>
<output>24</output>

<gadget id="calculator">3 * 5 * 2 * 2 * 3</gadget>
<output>180</output>

<gadget id="calculator">24 / 180</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">45 * (2/15)</gadget>
<output>6</output>

<gadget id="calculator">6 + 1</gadget>
<output>7</output>

<result>7</result>