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

### Instruction:
 Trevor ananunua vikundi kadhaa vya maua ya karafuu. Kundi la kwanza lina karafuu 9; kundi la pili lina karafuu 14; kundi la tatu lina karafuu 13. Ni wastani wa karafuu ngapi katika vikundi hivyo?


### Response:
 Trevor ananunua vikundi 3.
Jumla ni wastani mara idadi ya vikundi, au 9+14+13=<<36=36>>36.
Wastani ni 36/3=<<36/3=12>>12 karafuu kwa kila kundi.