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

### Instruction:
 Katika darasa lenye wanafunzi 25, wanafunzi walipoulizwa ikiwa wanapenda chipsi za kifaransa, hamburgers, au wala. Wanafunzi 15 walisema wanapenda chipsi za kifaransa na 10 walisema wanapenda hamburgers, na takwimu hizi zinajumuisha majibu ya wanafunzi 6 ambao walisema wanapenda chipsi za kifaransa na hamburgers pia. Wanafunzi wangapi hawapendi chakula chochote?


### Response:
 Kuna wanafunzi 15 - 6 = <<15-6=9>>9 ambao wanapenda chipsi za kifaransa pekee.
Kuna wanafunzi 10 - 6 = <<10-6=4>>4 ambao wanapenda hamburgers pekee.
Hivyo, wanafunzi 9 + 4 + 6 = <<9+4+6=19>>19 wanapenda chipsi za kifaransa, hamburgers, au vyote viwili.
Hivyo, 25 - 19 = <<25-19=6>>6 wanafunzi hawapendi chipsi za kifaransa wala hamburgers.