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

### Instruction:
It’s exam season and Tristan has several exams to prepare for. On Monday, he studies for 4 hours then studies for twice this long on Tuesday. On Wednesday, Thursday, and Friday he studies for 3 hours each day. He wants to study for a total of 25 hours over the week and divides the remaining amount of study time evenly between Saturday and Sunday. How many hours does Tristan spend studying on Saturday?

### Response:
 Siku ya Jumanne, Tristan anasoma mara mbili ya muda alioutumia Jumatatu, ambao ni masaa 4 * 2 = <<4*2=8>>8.
Kwa hiyo, kuanzia Jumatatu hadi Ijumaa, anasoma jumla ya masaa 4 Jumatatu + 8 Jumanne + 3 Jumatano + 3 Alhamisi + 3 Ijumaa = <<4+8+3+3+3=21>>21.
Hii inamaanisha amebakiwa na masaa 25 - 21 = <<25-21=4>>4 ya kusoma.
Anagawanya muda wake sawasawa kwa siku 2, hivyo anatumia masaa 4 / 2 = <<4/2=2>>2 kusoma siku ya Jumamosi.