The price of electricity for residents in a city is 0.62 yuan per kWh. Mingming’s family paid 31 yuan for electricity last month. How many kWh did they use?
某市居民用电的价格为每千瓦时0.62元．明明家上个月付电费31元，用电多少千瓦时？
<gadget id="calculator">31 / 0.62</gadget>
<output>50</output>

<result>50</result>