A row of telephone poles, the original distance between each pole is 30 meters, but now it is changed to 45 meters. If the first pole does not move, at least how many meters apart there is another pole that does not move?
一排电线杆，原来每根之间的距离是30米，现在改为45米．如果第一根不动，至少在隔多少米又有一根电线杆不动？
<gadget id="calculator">2 * 3 * 3 * 5</gadget>
<output>90</output>

<result>90</result>