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

### Instruction:
 Kuna wanafunzi 20 darasani. Ni robo tu ya wanafunzi waliobaki darasani wakati wengine walienda uwanjani. Kati ya wale waliokwenda uwanjani, theluthi moja ni wavulana. Kuna wasichana wangapi uwanjani kutoka darasani hii?


### Response:
 Kati ya wanafunzi 20, 20 x 1/4 = <<20*1/4=5>>5 waliobaki darasani.
Wakati 20 - 5 = <<20-5=15>>15 walienda uwanjani.
Kati ya hao 15, 15 x 1/3 = <<15*1/3=5>>5 ni wavulana.
Hivyo, kuna 5 - 5 = <<5-5=0>>0 wavulana darasani.
Hivyo, kuna 15 - 5 = <<15-5=10>>10 wasichana uwanjani kutoka darasani hii.