An air conditioner consumes 1.4 kilowatt-hours of electricity per hour. If it is turned on for 6.5 hours a day, and it is turned on for 10 days in a month, how many kilowatt-hours of electricity will be used in this month?
一台空调每小时用电1.4千瓦时，如果每天开6.5小时，某月开10天，这个月共用电多少千瓦时？
<gadget id="calculator">1.4 * 6.5 * 10</gadget>
<output>91</output>

<result>91</result>