Quantitative Aptitude - Arithmetic Ability Questions

The length of a chord which is at a distance of 5cm from the centre of a circle of radius 13cm is

What will be the average of all the prime numbers before 19?

In a triangle the length of the side opposite the angle which measures 30° is 9 cm, what is the length of the side opposite to the angle which measures 60°?

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

The average age of 27 students of a class is 22. If the age of the teacher is also added to their ages, then the average increases by one. Find the age of the teacher.

The compound interest on Rs. 64,000 for 3 years, compounded annually at 7.5% p.a. is Rs. 64,000

Find the sum of the measures all the exterior angles of a decagon.

What is the reflection of the point (3, 2) in the line y = -2?