 
 <translate> Kelly, Brittany, and Buffy went swimming at Salt Rock Lake and held a contest to see who could hold their breath underwater for the longest amount of time. Kelly held her breath underwater for 3 minutes. Brittany held her breath underwater for 20 seconds less time than than Kelly did, and Buffy held her breath underwater for 40 seconds less time than Brittany did. How long, in seconds, did Buffy hold her breath underwater? Let's be accurate as possible. <hau> Kelly, Brittany, da Buffy sun tafi yin iyo a Salt Rock Lake kuma sun yi gasa don ganin wanda zai iya riƙe numfashin su a ƙarƙashin ruwa na tsawon lokaci. Kelly ta riƙe numfashin ta a ƙarƙashin ruwa na mintina 3. Brittany ta riƙe numfashin ta a ƙarƙashin ruwa na daƙiƙa 20 ƙasa da na Kelly, kuma Buffy ta riƙe numfashin ta a ƙarƙashin ruwa na daƙiƙa 40 ƙasa da na Brittany. Yaya tsawon lokacin da Buffy ta riƙe numfashin ta a ƙarƙashin ruwa? Bari mu zama daidai kamar yadda zai yiwu. 