Quantitative Aptitude - Arithmetic Ability Questions

a, b and c are 3 values, such that a + b = 5, b + c = 7.5 and c + a = 8.5. What will be the average of these values?

Average of 31 numbers is 19. If the average of first 8 numbers is 24, then what is the average of the remaining numbers?

The height of a tower is 50√3 m. The angle of elevation of a tower from a distance 50 m from its feet is

What number, from the following should be deducted from 1184 to make it exactly divisible by 21?

The measures of the three angles of a triangle are in the ratio 1:2:3. What is the measure of the biggest angle?

If the shopkeeper sells an item at Rs 1000 which is marked as Rs 1250, then what is the discount he is offering?

The length of one side and the diagonal of a rectangle are 20 cm and 29 cm respectively. Find the length of its other side (in cm).

When a number is increased by 34, it becomes 117% of itself. What is the number?