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

### Instruction:
Ben's hockey team is 60% boys and the rest are girls. Half the girls are juniors and the other half are seniors. If the team has 50 players, how many junior girls are there?

### Response:
 Timu ina wachezaji 50, hivyo 60% ya 50 = <<60%*50=30>>30 wavulana.
Wachezaji wengine 50 - 30 = <<50-30=20>>20 ni wasichana.
Nusu ya 20 = <<20/2=10>>10 ni wanafunzi wa darasa la kwanza, na nusu nyingine ni wanafunzi wa darasa la pili.
Kuna wasichana 10 wa darasa la kwanza.