Question
Who lives in room number
7? Study the following information carefully and answer the questions given below it. Twelve persons P, Q, R, S, T, U, V, W, X, Y, Z and A are sitting around a hexagonal shaped table facing center. Six persons are sitting at corners of the table and remaining persons are sitting at the edges of the table. They all are living in different rooms numbered 1 - 12.Consecutive alphabetical names of the persons are not adjacent to each other. Consecutive numerical room numbers of the persons are not adjacent to each other. Two persons are sitting between Z and U who lives in room number 8.U sits at one of the corner of the table. Three persons are sitting between Z and the one who lives in room number which is square of an odd number but not 1. T sits fourth to the right of A who sits adjacent to U. T lives in room number 4.Immediate neighbor of U lives in the prime numbered room. Four persons are sitting between W and Y when counted from left of W who is not an immediate neighbor of Z. The one who lives in room number 1 sits third to the left of W who lives in room number 11. R and V are immediate neighbors. Q sits second to the right of the one who lives in room number 3.The one who lives in room number 12 sits second to the left of X. Q and S lives adjacent to each other. P lives in room number 10. Q and W are not an immediate neighbor of each other. The room number of R is greater than the room number of Z.Solution
Two persons are sitting between Z and U who lives in room number 8. Â U sits at one of the corner of the table. Case-1
Case-2
Three persons are sitting between Z and the one who lives in room number which is square of an odd number(9) but not 1. Case-1
T sits fourth to the right of A who sits adjacent to U. T lives in room number 4. Case-1
Immediate neighbors of U lives in the prime numbered room. Â Four persons are sitting between W and Y when counted from left of W who is not an immediate neighbor of Z. Â The one who lives in room number 1 sits third to the left of W who lives in room number 11. Case-1
Case-2
R and V are immediate neighbors. Q sits second to the right of the one who lives in room number 3. Q and W are not an immediate neighbor of each other. Q and S lives adjacent to each other. The one who lives in room number 12 sits second to the left of X. P lives in room number 10.  The room number of R is greater than the room number of Z. Case-1
Case-2 final 
A certain sum of money becomes Rs. 1900 in 1 year and 2600 in 3 years at certain rate of simple interest. Find the sum of money invested.
How many possible values can the digit 'k' take if the number 9458k2 is divisible by 8?
A group of 20 boys can complete a task in 15 days. Similarly, 24 girls can finish the same task in 20 days. If the ratio of the e...
In order that the lines y = x + 1, 2x - 3y + 5 = 0 and 3x - y + m = 0 may meet in a point, the value of m should be:
Let f: [3, ∞) → R be defined by f(x) = x² – 6x + 11. The range of f is:
The average of 26 numbers is 45. If 4 is added to each number, then the new average will be:
What will come in place of ?
4, 5, 13, 40, 104, ?.
A person, 'Q', uses 40% of their monthly income on food and then spends 60% of what is left on rent. After covering these expense...
A shopkeeper bought two articles for Rs. 600 each. If he sold one of them at 40% profit and the other at 25% loss, then find the difference between the ...