Quantitative Aptitude - Arithmetic Ability Questions

In a class consisting of boys and girls, there are 45 students. If three fifth of the students are boys, find the number of boys in the class.

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 interest earned on Rs. 3675 at the rate of 4% simple interest per annum for 2 years will be

A right circular cylinder is partially filled with water. Two iron spherical balls are completely immersed in the water so that the height of the water in the cylinder rises by 4 cm. If the radius of one ball is half of the other and the diameter of the cylinder is 18 cm, then the radii of the spherical balls are

Three consecutive natural numbers are such that the square of the greatest is greater than the product of the other two by 19. The smallest of these numbers is

Three runners A,B and C run a race, with runner A finishing 12 meters ahead of runner B and 18 meters ahead of runner C, while runner B finishes 8 meters ahead of runner C. Each runner travels the entire distance at a constant speed. The length of the race is

Find out the odd word/letters/number/number pair from the given alternatives.

If the length of one side and the diagonal of a rectangle are 10 cm and 26 cm respectively, then find its perimeter (in cm).