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

### Instruction:
 Nadine alikusanya mawe yenye rangi tofauti. Ana mawe meupe 20 na nusu ya idadi ya mawe mekundu. Ana mawe mangapi jumla?


### Response:
 Nadine ana mawe mekundu 20/2 = <<20/2=10>>10.
Hivyo, ana jumla ya mawe 20 + 10 = <<20+10=30>>30.