Quantitative Aptitude - Arithmetic Ability Questions

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

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

In an army selection process, the ratio of selected to unselected was 5:1. If 100 less had applied and 20 less selected, the ratio of selected to unselected would have been 6:1. How many candidates had applied for the process?

AB is the diameter of a circle with center O and P be a point on its circumference. If ∡POA = 120°, then the value of ∡PBO is

The angle of elevation of a ladder leaning against a wall is 60 deg and the foot of the ladder is 4.6 m away from the wall. The length of the ladder is

If a perfect square, not divisible by 6, be divided by 6, the remainder will be

When 0.363636.....is converted into a fraction, then the result is _____.

Fraction that lies between 2/5 and 4/9 is