Quantitative Aptitude - Arithmetic Ability Questions

In a triangle ABC, ∠A = 70°, ∠B = 80° and D is the incentre of ΔABC. ∠ACB = 2x° and ∠BDC = y°. The values of x and y, respectively are

What is the sum of the measures of all the interior angles of a regular polygon of 9 sides?

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.

Find the HCF of 48, 92 and 140

The simple interest on a sum of money is 16/25 of the principal. The number of years is equal to the rate of interest per annum. What is the rate (in percentage) of interest per annum?

The line parallel to the BC of the triangle ABC divides the other two sides at the point D and E in such a way that AB=3AD. Calculate the ratio of DE and BC.

What is the value of 2 consecutive natural numbers, sum of whose squares is 145?

In the following question, select the odd letter/letters from the given alternatives.