about 10square meters
the size of you!>!CK
4
The answer will depends on the size of the bag, how much cement it makes and the thickness of the cement layer. Since you have not bothered to share these crucial bits of information, I cannot provide a more useful answer.
A 50 kg bag of cement typically covers about 0.5 to 1 square meter when used for flooring, depending on the thickness of the layer applied and the mix ratio with aggregates. For a standard thickness of 5 cm for a concrete floor, you can expect to cover closer to 1 square meter. It's important to consider the specific project requirements and mixing proportions for more accurate estimates.
You will need to know the weight of the plastering. If you identify a weight per cubic meter, multiply it by the number of cubic meters that you have.
about 10.5 square feet
That will depend on how thick a layer you want.
2500 tiles
One square metre is the area of a square whose sides measure exactly one metre.
20
Given only the information that appears in the question you cannot. You also need to know how thick (deep) the cement needs to be.
83m^2