Quantitative Aptitude - Arithmetic Ability Questions

Average of two numbers is 8 and average of other three numbers is 3 ; the average of the five numbers is

The area of a circle is 346.5 cm2. Find its circumference (in cm).

The circumference of a circle is equal to the perimeter of an equilateral triangle. If the radius of the circle is 7 cm what is the length of the side of the equilateral triangle?

If 9x - [5(2x + 1)/2] = 9/2, then the value of x is?

A watch having marked price as Rs 8400 is sold for Rs 5040 after two successive discounts. If the first discount is 25% then what is the second discount percentage?

A man travels 800 km in partly by rail and partly by steamer. He spends 7 hours more time on steamer. If the velocity of the steamer is 20 km/hr and the velocity of rail is 55 km/hr, how much distance does he cover by steamer?

There are 8 equidistant points A, B, C, D, E, F, G and H (in same order) on a circle. What is the value of ∠FDH (in degrees)?

When a number is increased by 69, it becomes 103% of itself. What is the number?