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

### Instruction:
 Miss Molly alifanya utafiti katika darasa lake lenye wanafunzi 30 kuhusu rangi wanayopenda. Nusu ya darasa ilijibu kijani, theluthi moja ya wasichana waliijibu pink, na wengine wa darasa waliijibu njano. Ikiwa kuna wasichana 18 katika darasa hilo, wanafunzi wangapi wanapenda rangi ya njano zaidi?


### Response:
 30/2 = <<30/2=15>>15 wanafunzi walijibu kijani.
18/3 = <<18/3=6>>6 wasichana walijibu pink.
Hivyo, 15 + 6 = <<15+6=21>>21 walijibu kijani au pink.
Hivyo, 30 - 21 = <<30-21=9>>9 walijibu njano.
Hivyo, 9 walijibu njano kwa sababu ilikuwa rangi yao pendwa.