Quantitative Aptitude - Arithmetic Ability Questions

If x + (1/x) = (√3 + 1)/2, then what is the value of x4 + (1/x4)?

Marked price of an article is Rs 520 and selling price is Rs 384.8. What is the discount percentage?

Calculate the total numbers of prime factors in the expression (5)11 x (5)7 x (7)5 x (3)2 x (17)2.

The third proportional of two numbers 9 and 24 is

The height of the equilateral triangle is 9 cm. What is the radius (in cm) of the circle circumscribing the three vertices?

What is (x-y)3+y-23+z-x33x-yy-zz-x =?

If A = 400 and B = 600, then A is how much percentage less than B?

Mr. Rajesh buys a toy for Rs. 27.50 and sells it for Rs. 28.60. Find the gain %.