Quantitative Aptitude - Arithmetic Ability Questions

What will be the net discount (in percentage) for two successive discounts of 30% and 20%?

In ∆ABCif the median AD=1/2 BC, then ∠BAC is

If (x – y) = 7, then what is the value of (x – 15)3 – (y – 8)3?

Find the perimeter (in cm) of a semicircle of radius 28 cm.

The area of a rhombus having one side 10 cm and one diagonal 12 cm is

If a person bought an item for Rs. 60 and sold it at a profit of 25%, the selling price of the item would be

The sum of a fraction and 7 times its reciprocal is 11/2. What is the fraction?

The difference between the compound interest compounding half yearly for 1 year and the simple interest for 1 year on a certain sum of money lent out at 8% per annum is Rs 64. What is the sum (in Rs)?