Quantitative Aptitude - Arithmetic Ability Questions

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

Select 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.

In a triangle ABC, the length of in-radius and circum-radius is 2 units and 6 units respectively. Find the distance (in units) between the in-centre and circum-centre.

Find the area (in cm²) of a semi-circle of radius 21 cm.

When [x + (1/x)] = 5, then what is the value of [x – (1/x)]?

The effective annual rate of interest corresponding to a nominal rate of 19% per annum payable half­yearly is:

If in a two digit number, the digit at unit place is y and the digit at tens place is 5, then the number is