Quantitative Aptitude - Arithmetic Ability Questions

A's salary was decreased by 50% and subsequently increased by 50%. How much percent does he lose?

Find the curved surface area (in cm2) of a right circular cone of diameter 28 cm and slant height 12 cm.

Select the odd number from the given alternatives.

In the following question, select the odd letter/letters from the given alternatives.

What is the value of ( 1/3 + cosec30)?

The list price of an article is Rs. 900. It is available at two successive discounts of 20% and 10% . The selling price of the article is:

If after giving a discount of 18%, a book is sold for Rs 1599, then what will be the marked price (in Rs) of the book?

If 4r = h + r2+h2 then r: h = ? (r not equal to 0)