 
 <translate> Kelly held her breath for 3 minutes, or 3 * 60 = 180 seconds. Brittany held her breath for 20 seconds less time than Kelly did, or 180 - 20 = 160 seconds. And Buffy held her breath for 40 seconds less time than Brittany did, or for 160 - 40 = 120 seconds.
The answer: 120. <hau> Kelly ta riƙe numfashi na tsawon minti 3, ko kuma 3 * 60 = 180 seconds. Brittany ta riƙe numfashin ta na daƙiƙa 20 ƙasa da lokacin da Kelly ta yi, ko kuma 180 - 20 = 160 seconds. Kuma Buffy ta riƙe numfashin ta na 40 seconds kasa da lokacin da Brittany ta yi, ko kuma na 160 - 40 = 120 seconds. Amsar ita ce: 120. 