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

### Instruction:
 Ikiwa robo moja ya injini ni mbovu, na kuna makundi 5 ya injini 80 kila moja. Injini ngapi hazina kasoro?


### Response:
 Kuna injini 80*5 = <<80*5=400>>400 jumla.
400/4 = <<400/4=100>>100 ya injini ni mbovu.
400-100 = <<400-100=300>>300 ya injini hazina kasoro.