Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
There is a lot of dust in Susie's house. It takes her 2 hours to vacuum the whole house. She can vacuum each room in 20 minutes. How many rooms does she have in her house?

### Response:
 Susie anatumia 2*60 = <<2*60=120>>120 dakika kusafisha.
Ikiwa inamchukua dakika 20 kusafisha kila chumba, basi ana vyumba 120/20 = <<120/20=6>>6 katika nyumba yake.