Quantitative Aptitude - Arithmetic Ability Questions

The third proportional of the following numbers (x - ­y)2, (x2 - y2)2 is

The ratio of salary of u, v and w is 8 : 7 : 13. If w gets Rs 3384 more than that of v, then what is the salary (in Rs) of u?

If 5x + 5 > 2 + 2x and 5x + 3 ≤ 4x + 5; then x can take which of the following values?

If 3x+22x+1 = a2x+1+bx+2 be an identity, then the value of b

If cosec π/4 - ­ sin π/3 = x, then the value of x is

From the top of a 20 m high building, the angle of elevation of the top of a tower is 60° and the angle of depression of it's foot is at 45°, then the height of the tower is (√3=1.732)

What is the sum of the first 11 terms of an arithmetic progression if the first term is -31 and last term is 29?

If x = 1 + √2 + √3 , then the value of 2x4 - 8x3 - 5x2 + 26x - 28 is