 
 <translate> The battery charge in Mary’s cordless vacuum cleaner lasts ten minutes. It takes her four minutes to vacuum each room in her house. Mary has three bedrooms, a kitchen, and a living room. How many times does Mary need to charge her vacuum cleaner to vacuum her whole house? Let's be accurate as possible. <hau> Cajin batir a cikin injin tsabtace mara waya na Maryamu yana ɗaukar minti goma. Yana ɗaukanta minti huɗu kafin ta share kowane ɗaki a gidanta. Maryamu tana da dakuna uku, ɗakin abinci, da kuma ɗakin zama. Sau nawa ne Maryamu take bukatar cajin injin nata don ta share dukan gidanta? Bari mu zama daidai kamar yadda zai yiwu. 