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

### Instruction:
 Annie alipewa pakiti ya rangi. Pakiti ilikuwa na rangi 21. Tayari alikuwa na sanduku lenye rangi 36 katika kabati lake. Rafiki yake Bobby alimpa nusu ya idadi ya rangi aliyokuwa nayo katika kabati lake. Akaamua kumpa dada yake Mary 1/3 ya idadi yake ya jumla ya rangi. Anampa Mary rangi ngapi?


### Response:
 Jumla, Annie ana rangi 36 + 21 = <<36+21=57>>57.
Bobby mwishowe alimpa Annie rangi 36 / 2 = <<36/2=18>>18.
Annie sasa ana jumla ya rangi 57 + 18 = <<75=75>>75.
Anamaliza kumpa Mary jumla ya rangi 75 * (1 / 3) = <<75*(1/3)=25>>25.