Quantitative Aptitude - Arithmetic Ability Questions

In a Rhombus ABCD, measure of angle CAB is 30°, what is the measure of angle ABC?

What is the place value and face value of 9 in 68956 respectively?

The mean of 14 observations is 11. One more observation is included and the new mean becomes 12. The 15th observation is

The value of x for which the expressions 15x + 4 and 13x - 2 become equal is ______

If a+1b=1 and b+1c=1 , then the value of c+1a is

If 5 ­ 3x < 4 ­ x and 5(2 ­ x) > 2 ­ 2x, then x can take which of the following values?

If 5x ­- 40 = 3x, then the numerical value of 2x -­ 11 is

If x=aCosθCosΦ, y = aCosθSinΦ and z= aSinθ, then the value of x2+ y2 + z2 is