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

### Instruction:
A charcoal grill burns fifteen coals to ash every twenty minutes of grilling. The grill ran for long enough to burn three bags of coals. Each bag of coal contains 60 coals. How long did the grill run?

### Response:
 Grill ilichoma makaa 3 * 60 = <<3*60=180>>180.
Inachukua dakika 20 kuunguza makaa 15, hivyo grill ilifanya kazi kwa dakika 180 / 15 * 20 = <<180/15*20=240>>240.