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

### Instruction:
There are 11 boys and 13 girls in a class. If 1 boy is added to the class, what percentage of the class are girls?

### Response:
 Jumla ya wanafunzi darasani ni wavulana 11 + 1 = <<11+1=12>>12.
Hivyo, jumla ya wanafunzi darasani ni wavulana 12 + wasichana 13 = <<12+13=25>>25.
Hivyo, 13/25 x 100% = 52% ya darasa ni wasichana.