Quantitative Aptitude - Arithmetic Ability Questions

If ABCD is a Cyclic Quadrilateral, then the value of Cos2A - Cos2B - Cos2C + Cos2D is

From the top of a 20 m high building, the angle of elevation of the top of a tower is 60° and the angle of depression of it's foot is at 45°, then the height of the tower is (√3=1.732)

Find the odd word/letters/number from the given alternatives.

Findout the odd word/letters/number/number pair from the given alternatives.

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

The HCF and LCM of two numbers are 3 and 2730 respectively. If one of the numbers is 78, find the other number.

Find the value of  y(y4 - y2 - y) when y = 5.

Find the odd words/letter/number from the given alternatives: