Question
Who lives on the 4th floor?
Study the following information carefully and answer the questions given below: C, D, E, F, G, H, I, J and K are nine people who live in a multi – storey building on different floors. The ground floor is number 1, the floor above is number 2 and so on, and the topmost floor is number 9. In the building meeting all of people were seated facing in two rows such that five in one row and four in other, one place was vacant in the row of four people. These people were facing each other in the linear seating arrangement (means one row is facing north and another row people south). The persons at the extreme ends of the north facing row are immediately next to each other’s floor. K lives on the top floor and sits opposite to the vacant place. The person living on the 5th floor sits opposite to H and faces north. J and C live immediately next to each other’s floor with J above C’s floor and both sit opposite to each other. G is not immediately next to D’s floor. D sits third to the right of J and F is in the middle of the North facing people’s row. C sits to the left of H. J does not live on 8th or 7th floor. H and E sit at the extreme ends of the row and face south; also they are immediately next to each other’s floor. G lives on the 3rd floor and faces south. D does not sit adjacent to the vacant place. There are exactly three floors between K and I.Solution
K lives on the top floor. F is in the middle of the North facing people’s row. G lives on the 3rdfloor. 
There are exactly three floors between K and I. H and E sit at the extreme ends of the row and face south. 
C sits to the left of H. This is not possible in Case II, therefore, Case II will be eliminated. 
J and C sit opposite to each other. The person living on the 5thfloor (i.e. I) sits opposite to H and faces north. lives above C’s floor  J does not live on 8thor 7thfloor. J cannot be on 6th or 4th floor also as C lives immediately below J. (so, J lives on 2nd floor and C on 1st floor), D sits third to the right of J. 
D does not sit adjacent to vacant place. (Therefore, vacant place is in the south facing row.)  G faces south. K faces the vacant place. The persons at the extreme ends of the north facing row are immediately next to each other’s floor (i.e. I and D). G is not immediately next to D’s floor. 
H and E are immediately next to each other’s floor. Case-1 
- A grandmother intended to distribute Rs. 2400 among her three grandchildren—A, B, and C—in the ratio of 5:4:3. However, due to an error, she mistakenly...
The ratio of two numbers is 3:5. If each number is decreased by 5, the ratio becomes 5:9. Find the smaller numbers.
Rs. 10400 was divided among A, B and C in the ratio 2:3:3. B kept Rs. 1200 for himself, gave Rs. 500 to his mother and divided the remaining money among...
If 'A' = (2/5) of 'B', 'B' = (3/4) of 'C', then find the value of (A + B) :(B + C) .
The ratio of the speeds of Train A, Train B, and Train C is 3:5:7 respectively. Train D moves 6 km/hr slower than Train B. If the difference between Tra...
In an office, the ratio of the number of males to number of females is 12:7. If 2 males joined the class and 8 females left the class, then the ratio of...
A sum of ₹12,000 is divided among A, B, and C in the ratio 3:4:5. If A and B donate 25% and 20% of their shares respectively to a charity, how much mo...
The ratio of the two numbers is 7:15. 120% of the first number is equal to the 70% of the second number. Find the sum of both the numbers.
The ratio of the pocket money of two persons ‘P’ and ‘Q’ is 5:2, respectively. ‘P’ spends 60% of his pocket money while ‘Q’ spends 25% o...
Total population of city P and Q is 3150 and 3640 respectively. If the ratio of number of males to females in city is P and Q is 5:4 and 4:3 respectivel...
Relevant for Exams:
