Quantitative Aptitude - Arithmetic Ability Questions

Calculate the value of ∡OBC + ∡BAC, if O is the circum-center of the triangle ABC inscribed in the circle.

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.

What is the sum of the first 13 terms of an arithmetic progression if the first term is -10 and last term is 26?

The sum of a non-zero number and thrice its reciprocal is 52/7. Find the number.

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

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

The radius and the height of a cone are each increased by 20%. Then the volume of the cone increases by

The triangle in which the orthocenter, circumcentre, Incenter and the centroid coincide each other at a point is known as _____________.