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

### Instruction:
There are 9 boys and 12 girls in a class. The teacher needs to create groups with three members for their class activity. How many groups are formed?

### Response:
 Kuna jumla ya wanafunzi 9 + 12 = <<9+12=21>>21 darasani.
Hivyo, makundi 21/3 = <<21/3=7>>7 yameundwa.