Quantitative Aptitude - Arithmetic Ability Questions

If the standard deviation of a population is 6.5, what would be the population variance?

What is the equation of the line which has 3/2 and -­4/7 as x and y intercept respectively?

What is the value of (tan60 + 1/3) ?

The sum for 2 years gives a compound interest of Rs 3225 at 15% rate. Then sum is

The internal bisectors of ∠Q and ∠R of triangle PQR meet at O. If ∠P = 70°, then what is the measure of ∠QOR (in degrees)?

Find the perimeter (in cm) of a semicircle of radius 14 cm.

The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 16% per annum is Rs 320. What is the value of given sum (in Rs)?

AB is a chord of the circle and its center is “O”. ON is perpendicular to AB. If the length of AB=20 cm, ON-(2√11) cm, find the radius (in cm) of the circle.