Question
Four from the following five are related in a certain
way and hence form a group. Find the one who doesn’t belong to that group. Study the following information carefully and answer the questions below. Eight employees A, B, C, D, M, N, O and P of a company are sitting around a rectangular table and facing away from the center of the table but not necessarily in the same order. Four of them are seated at the corners of the table and four are seated in the sides of the table. M is sitting 3rd to the left of the one who is sitting 2nd to the right of C. Only three persons are sitting between D and O. P is an immediate neighbour of either M or C. Person who is sitting opposite to A, is sitting 2nd to the right of O. N is sitting 2nd to the right of B. N is neither sitting opposite to C nor sitting in the corner of the table.Solution
M is sitting 3rd to the left of the one who is sitting 2ndto the right of C. Here we get two possibilities.
Only three persons are sitting between D and O. P is an immediate neighbor of either M or C. Person who is sitting opposite to A, is sitting 2ndto the right of O. Here we get two possibilities in both cases.
N is sitting 2nd to the right of B. N is neither sitting opposite to C nor sitting in the corner of the table. We cannot fix the position of N in case (1), case (1a) and case (2). So these cases are eliminated. 

What will be circumradius of a right angle triangle whose base is 7 cm & height is 24 cm ?
in the given figure, ABCD is a square whose side is 4 cm. P is a point on the side AD. What is the minimum value (in cm) of BP + CP ?
Find the difference between angle and its complement if the angle is two-seventh of its complement.
If I is the incentre of ΔABC , if ∠BAC = 750 , then what is the measure of ∠BIC?
If in a ΔABC, D is a point on BC such that BD = 1cm , BC = 3 cm then what is ratio of area of ΔABD to area of ΔADC ?
The lengths of three medians in a triangles are 6 cm, 8 cm, 10 cm. What is the area of that traingle (in cm 2 )?
The length of the each side of an equilateral triangle is 28√3. The area of incircle, (cm 2 ) is
What will be inradius of a right angle triangle whose base is 3 cm & height is 4 cm ?