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

### Instruction:
 Wakiwa pamoja, mbwa pug wanne wanaweza kusafisha nyumba yao kwa dakika 45. Katika dakika ngapi mbwa pug 15 wakifanya kazi pamoja wataweza kusafisha nyumba yao?


### Response:
 Ikiwa mbwa pug wanne wanaweza kusafisha nyumba yao kwa dakika 45, mbwa pug mmoja atachukua 4*45=<<4*45=180>>180 dakika.
Kwa kuwa mbwa pug mmoja akifanya kazi peke yake anachukua dakika 180 kusafisha nyumba yao, mbwa pug kumi na tano wakifanya kazi pamoja wataweza kusafisha nyumba yao kwa dakika 180/15=<<180/15=12>>12.