Quantitative Aptitude - Arithmetic Ability Questions

The diameter of a circle is equal to the side of the square. What is the area of the square if the area of the circle is 64π sq cm?

If πsinθ= 1, πcosθ= 1, then (3tan 23θ+1) is

A book is sold at three successive discounts of 20%, 20% and 10%. What is the net discount (in percentage)?

A dealer marks his goods 20% above their cost prices. Then,he allows such a discount on the marked price so that he makes a profit of 8%. The rate of discount is:

If the simple interest on Rs. 400 for 10 years is Rs. 280, then rate of interest per annum is

A bus travels 720 km in 20 hours. Calculate its average speed in meters/second.

A shopkeeper by selling 22 Skechers shoes, earns a profit equal to the selling price of 6 Skechers shoes. His profit percentage is:

What is the average of all numbers between 11 and 80 which are divisible by 6?