Question
Six persons D, E, F, M, N and O live in a six storey
building but not necessarily in the same order. The bottommost floor is numbered as 1st and the topmost floor is numbered as 6th. F lives two floors above N. M lives just below O. O lives on a prime numbered floor. E lives below F but above D. D doesn't live below M. Who lives on 4 th floor?Solution
F lives two floors above N. M lives just below O. O lives on a prime numbered floor.
We will have three cases, first, when O lives on 2 nd floor, second, when O lives on 3 rd floor and third when O lives on 5 th floor. 
E lives below F but above D. D doesn't live below M.
Case 3 gets eliminated.
In case 1, F lives on 6 th floor, E lives on 5 th floor.
In case 2, E lives on 5 th floor and D lives on 1 st floor but this case will get discarded as D doesn't live below M.
The final arrangement is as follows. 
What number should replace the question mark?
In each of the following questions select the related letter/word/figure/number from the given alternatives.
JRH : ? : : KOV : 51
Select the number from among the given option that can replace the question mark (?) in the following series.
6, 31, 126, 381, 766, ?
Study the given pattern carefully and select the number that can replace the question mark (?) in it.
First row: 14, 12, 108
Second row:...
Find the missing number?
What will come in the place of question mark?
Select the number from the given option that can replace the question mark (?) in the following series:
32, 16, 24, 60, ?, 945
Study the given matric carefully and select the number from among the given options that can replace the question mark (?) in it.
Select the option that is related to the third number in the same way as the second number is related to the first number.
15 : 5 :: 26 : (?)
Find the missing number by analysing the pattern followed by the numbers in each row.
