Quantitative Aptitude - Arithmetic Ability Questions

If in 2 years at simple interest the principal increases by 18%, what will be the compound interest (in Rs) earned on Rs 7000 in 3 years at the same rate?

If sec2A cosec2A = x, then x is

If x2 – 12x + 33 = 0, then what is the value of (x – 4)2 + [1/(x – 4)2]?

If √(1 + cot2A) = x, then the value of x is

A discount of 45% on an article is equal to the discount of 65% on other article. What is the respective ratio of the marked price of both the articles?

If 4x2 - 12x + k is a perfect square, then the value of k is

The area of a semicircle is 1925 sq.cm. Calculate its perimeter (in cm).

Rathin is now 16 years old while his cousin is 7 years. After how many years will Ratin's age be 1.5 times that of his cousin?