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

### Instruction:
 Marjorie anafanya kazi kama mpishi. Kila siku, anatengeneza keki mara mbili ya idadi ya keki aliyotengeneza siku iliyopita. Siku ya sita, anatengeneza keki 320. Marjorie alitengeneza keki ngapi siku ya kwanza?


### Response:
 Siku ya tano, Marjorie alitengeneza keki 320 / 2 = <<320/2=160>>160.
Hivyo, siku ya nne, alitengeneza keki 160 / 2 = <<160/2=80>>80.
Siku ya tatu, alitengeneza keki 80 / 2 = <<80/2=40>>40.
Siku ya pili, alitengeneza keki 40 / 2 = <<40/2=20>>20.
Siku ya kwanza, alitengeneza keki 20 / 2 = <<20/2=10>>10.