 
<translate> Maryamu tana da dakuna 3 + 1 + 1 = 5 a cikin gidanta. A minti 4 a daki, zai dauke ta 4 * 5 = minti 20 ta share gidanta baki daya. A cajin minti 10 a caji, za ta buƙaci cajin tsabtace tsabtace 20 / 10 = sau 2 don tsabtace dukan gidanta. Amsar ita ce: 2. <eng> Mary has 3 + 1 + 1 = 5 rooms in her house. At 4 minutes a room, it will take her 4 * 5 = 20 minutes to vacuum her whole house. At 10 minutes a charge, she will need to charge her vacuum cleaner 20 / 10 = 2 times to vacuum her whole house.
The answer: 2. 