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

### Instruction:
 Donna alinunua mara tatu zaidi ya penseli ambazo Marcia alinunua. Marcia alinunua mara mbili ya penseli ambazo Cindi alinunua. Donna na Marcia walikunua jumla ya penseli ngapi ikiwa Cindi alitumia $30 kwa penseli za $0.50?


### Response:
 Cindi alinunua penseli 30/0.50 = <<30/0.50=60>>60.
Marcia alinunua penseli 2*60 = <<2*60=120>>120.
Donna alinunua penseli 3*120 = <<3*120=360>>360.
Jumla, Donna na Marcia walikunua penseli 120+360 = <<120+360=480>>480.