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

### Instruction:
 Olaf ana bwawa la samaki. Ana samaki wa rangi 3: machungwa, kijani, na buluu. Samaki wa buluu ni nusu ya idadi ya samaki wote katika bwawa. Kuna samaki wa machungwa 15 chini ya samaki wa buluu. Kuna samaki wangapi wa kijani wakati idadi ya jumla ya samaki katika bwawa ni 80?


### Response:
 Idadi ya samaki wa buluu ni 80 / 2 = <<80/2=40>>40 samaki.
Idadi ya samaki wa machungwa ni 40 - 15 = <<40-15=25>>25 samaki.
Kuna samaki 80 - 40 - 25 = <<80-40-25=15>>15 samaki wa kijani.