Quantitative Aptitude - Arithmetic Ability Questions

If 1aa2+1 = 3, then the value of a6+1a3 is

If 2y cosθ = x sinθ and 2x secθ - y cosecθ = 3 then what is the value of x2+4y2

The mean of the data 1, 2, 10, 18, 3, 17, 19 is

If Mr. Raghav taught a total of 500 hours, then what is the difference in number of hours of teaching algebra and modern Maths?

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

By which least number should 5000 be divided so that it becomes a perfect square?

If xy+yz+zx = 1, then the value of (1+y2)(x+y)(y+z) ?

At what rate of compound interest per annum will a sum of Rs 20000 become Rs 25088 in 2 years?