Questions & Answers about Ofis kaçıncı katta?
Kaç means how many / how much.
Kaçıncı means which number / what ordinal number, so in this sentence it means which floor number or what floor.
Compare:
- Kaç kat var? = How many floors are there?
- Ofis kaçıncı katta? = What floor is the office on?
So kaçıncı is used when you want an answer like first, second, third, fourth, not just a quantity.
Because Turkish uses the locative case to express in / on / at.
- kat = floor
- katta = on the floor / on a floor
So Ofis kaçıncı katta? literally means something like:
The office is on which floor?
Without the locative ending, the sentence would sound incomplete or unnatural here.