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

### Instruction:
Hans booked a room in a hotel. The hotel has 10 floors with 10 identical rooms on each floor. Because of an accident, the last floor is unavailable for the guests. Considering there are no other guests, in how many different rooms could Hans be checked in?

### Response:
 Ikiwa hoteli ina sakafu 10 na vyumba 10 kwenye kila sakafu, idadi jumla ya vyumba ni 10 sakafu * vyumba 10/sakafu = <<10*10=100>>100 vyumba.
Kwa sababu ya ajali, sakafu ya mwisho haipatikani, kwa hivyo kuna vyumba 100 - vyumba 10 = <<100-10=90>>90.
Hans anaweza kuwa amejiandikisha katika moja ya vyumba 90 vilivyopo.