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

### Instruction:
 Kuna watoto 45 darasani. Thuluthi moja yao ni wasichana. Kuna wavulana wangapi darasani?


### Response:
 Thuluthi moja ya watoto wote ni wasichana, ambayo inamaanisha 1/3 * 45 = <<45*1/3=15>>15 watoto.
Hivyo kuna wavulana 45 - 15 = <<45-15=30>>30 darasani.