Quantitative Aptitude - Arithmetic Ability Questions

An article is listed at Rs 2375. A man purchases it at two successive discounts of 50% and 25% and spends Rs 165 on repairing of article. If he sells thearticle at a profit of 62.5%, then what is the selling price (in Rs) of the article?

Suppose n is a positive integer such that (n2+ 48) is a perfect square. What is the number of such n?

The simple interest accrued on a sum of money at the end of four years is 1/5th of its principal. What is the rate of interest per annum?

If y% of y is 289, then what is the value of y?

If cot2A -­ cos2A = x, then value of x is

A profit of Rs. 960 is divided between A and B in the ratio 1/3:1/2. The difference of their profit is :

If a cylinder of radius 4 cm and height 8 cm is melted and constructed into a cone of the same radius, what will be the height of this cone?

Loss of 20% on selling price is equal to x% loss in cost price. What is x?