In the first quarter of last year, a company saved an average of 25 kilowatt-hours of electricity per month. According to this calculation, how much electricity was saved in the fourth quarter?
某公司去年第一季度平均每月节约用电25度，照这样计算，第四季度共节约用电多少度？
<gadget id="calculator">25 * 3</gadget>
<output>75</output>

<result>75</result>