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

### Instruction:
At the beginning of an academic year, there were 15 boys in a class and the number of girls was 20% greater. Later in the year, transfer students were admitted such that the number of girls doubled but the number of boys remained the same. How many students are in the class now?

### Response:
 Idadi ya wasichana mwanzoni ilikuwa zaidi ya 15 (idadi ya wavulana) kwa 20%, hivyo kulikuwa na 15+(20/100)*15 = 18 wasichana
Baada ya wanafunzi waliohamishwa kujiunga, idadi ya wasichana iliongezeka mara mbili kuwa 18*2 = 36
Pamoja na wavulana 15, sasa kuna wanafunzi 36+15 = 51 darasani