In daily life, each of us produces 0.8 kg of household waste every day, which can be used to generate electricity after burning. For every 1,000 tons of waste burned, 20,000 kWh of electricity can be obtained. Our county can produce about 200 tons of domestic waste every day. After the domestic waste generated in one month (calculated as 30 days) is burned, how many tens of thousands of kilowatt hours can be generated?
生活中，我们每人每天都要产生0.8千克的生活垃圾，垃圾燃烧后可以用来发电，每燃烧1000吨垃圾，就可得到2万千瓦时电．我县每天大约可以产生200吨的生活垃圾，一个月(按30天计算)产生的生活垃圾燃烧后，大约可以发电多少万千瓦时？
<gadget id="calculator">200 * 30</gadget>
<output>6_000</output>

<gadget id="calculator">6_000 / 1_000</gadget>
<output>6</output>

<gadget id="calculator">6 * 2</gadget>
<output>12</output>

<result>12</result>