Quantitative Aptitude - Arithmetic Ability Questions

tanAcosec2A is equal to

If the compound interest for the 3rd and 4th year on a certain principal is Rs 125 and Rs 135 respectively, what is the rate of interest (in %)?

What is the compound interest earned on Rs 80,000 at 40% per annum in 1 year compounded quarterly?

What is the reflection of the point (-0.5, 6) in the x-axis?

If the perimeter of a semicircle is 108 cm, then find its area (in cm²).

If x = 4aba+b, then what is the value of x+2ax-2a+x+2bx-2b ?

If 2cosAsinB = x, then the value of x is?

Sita's bucket has thrice the capacity as Ramu's bucket. It takes 60 turns for Sita's bucket to fill the empty drum. How many turns it will take for both the buckets of Sita's and Ramu's, having each turn together to fill the empty drum?