The Huayuan District carried out activities to save electricity. Wang Gang's family plans to save 1 kWh per day, and how many months will it take to save 180 kWh?
花园小区开展节约用电的活动．王刚家计划每天节约1千瓦时，要节约180千瓦时，大约需要几个月？
<gadget id="calculator">180 / 1 / 30</gadget>
<output>6</output>

<result>6</result>