Quantitative Aptitude - Arithmetic Ability Questions

The diameter of a circle is 28 cm find its area?

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

If cosαcosβ=m and cosαsinβ=n,then the value of m2+n2 cos2β is

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.

Two whole numbers are such that the square of first number exceeds the second by 112 and the ratio of the numbers is 4:3. What is thevalue of smaller number?

A car travels a certain distance at 24 km/h and comes back at 36 km/h. Find the average speed for total journey.

If Data Interpretation and Modern Maths were taught for a combined time of 96 hours, then for how much time (in hours) were Number system and Geometry
taught?

If cosecA - cotA = x, then the value of x is