Quantitative Aptitude - Arithmetic Ability Questions

In the following question, select the odd word from the given alternatives.

The diagonals of 2 squares M and N are in the ratio 2:1. The ratio of their areas is

Two circles of equal radii intersect each other such that one circle will pass through the centre of the other circle. The distance between the centre of two circles is equal to 6 cm. Find the length (in cm) of common chord.

The angles of elevation of the top of a tower 72 metre high from the top and bottom of a building are 30° and 60° respectively. What is the height (in metres) of building?

If the number x3451 is divisible by 3, where x is a digit, what can be the sum of all such values of x?

If FRIEND is coded as HUMJTK, how can CANDLE be written in that code?

If the length of the shadow of a vertical pole on the horizontal ground is √3 times its height, then the angle of elevation

The co-ordinates of the centroid of a triangle ABC are (-1,-2) what are the co-ordinates of vertex C, if co-ordinates of A and B are (6,-4) and (-2,2) respectively?