Question
How many persons live below A (considering both types of
flats)? Answer the questions based on the information given below: Ten persons namely, A, P, C, Q, E, R, G, S, I and T live on 10 different flats of a 5 storey building, where the bottommost floor is 1 and the floor above is 2 and so on. There are 2 types of flats on each floor, flat Y and flat Z such that flat Y is in the west of flat Z. Flat Y of floor 1 is immediately below of flat Y of floor 2, which is immediately below of flat Y of floor 3 and so on, similarly for flat Z. P lives in flat Y. P and R live in the same type of flat. Two floors are there between the floors of P and R. R lives exactly in the west of G. P lives on the even numbered floor. I's floor is immediately above G's floor. I and E live in the same type of flat. There is one floor between the floors of I and E. Q's floor is just below S's floor. T lives above A. C doesn’t live in flat Z. S and T don't live in same type of flat.Solution
P live in flat Y of either floor 2 or floor4. I lives on a floor that is immediately above the floor of G. I and E live in the same type of flat. P and R lives in same flat. There is one floor between the floors of I and E.So,I lives in either flat Y or flat Z. Case1:When P lives on 2nd floor. G cannot be placed in this case, so this case is not possible. 
Q's floor is just below S's floor. Case2: When Plives on4th floor It means that E lives on 4th floor and since I and E live in the same type of flat, I lives in Flat-Z on 2nd floor. Thus Q lives in flat-Y on 2nd floor. 
T lives above A. C doesn’t live in flat Z. S and T don'tlivein sametype offlat. So, T must live in flat Z which implies that S lives in flat Y and thus C lives in flat Y and A lives in Flat Z on 3rdfloor. The final arrangement is as follows: 
The ratio of length to breadth of a rectangle is 8:5. When the length and breadth of the rectangle is increased by 40% and decreased by 25% respectively...
If the volume and radius of a cylinder is 24640 cm3 and 28 cm respectively then find the height of the cylinder?
Outer diameter of 20 cm long pipe is 25 cm. If the thickness of the metal in the pipe is 1 cm. Find the total surface area of the pipe?
A cylindrical vessel of internal radius 3 cm contains some water. When a solid metal sphere is completely immersed in it, the water level rises by 4 cm....
The breadth of a rectangle is increased by 10 cm, it will become twice the length of the rectangle. If the new perimeter is 360 cm, then find the origin...
A cylindrical tank has a height of 12 meters and a radius of 7 meters. If 50% of the tank is filled with water, what is the volume of water in the tank ...
There's a cone of height 12cm out of which a smaller cone with the same vertex and vertical axis is cut out. What is the ratio of the volume of the larg...
The ratio of the breadth to the length of a rectangular field is 3:4. The total cost of cutting the grass of the field at the rate of Rs 12 per m2<...
There is a rectangular paper, whose length and breadth are in the ratio 9:5, respectively and it has a perimeter of 84 metres. If a triangular piece wit...
How many spherical solid marbles, each having a radius of 0.3 cm, can be made from a solid sphere having a radius of 6 cm?
