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

### Instruction:
 Kuna wavulana 20 na wasichana 11 darasa la pili na mara mbili ya idadi hiyo katika darasa la tatu. Kuna wanafunzi wangapi katika madarasa ya pili na tatu?


### Response:
 20 + 11 = <<20+11=31>>31 wanafunzi
Darasa la pili: 20 + 11 = <<20+11=31>>31 wanafunzi
Darasa la tatu: 2 x 31 = <<2*31=62>>62 wanafunzi
Madarasa ya pili na tatu: 31 + 62 = <<31+62=93>>93 wanafunzi