Quantitative Aptitude - Arithmetic Ability Questions

The value of 1/64 is equal to square of

If xy (x + y) = m, then the value of x3 + y3 + 3m is:

If sinA + sin2A = 1 then what is the value of cos2A + cos4A ?

Rs. 3105 is due to be divided among K, L and M in the proportion of 2/3 : 3/4 : 1/2 respectively. How much will L get?

Which of the fractions given below is not equal to 4/11 ?

If ab+ba = -1, then the value of a2b-b2a is

An equilateral triangle ABC is inscribed in a circle of radius 20√3.
The centroid of the triangle ABC is at a distance d from the vertex A. What is d equal to ?

If sin P + cosec P = 2, then the value of sin7P + cosec7P is