Quantitative Aptitude - Arithmetic Ability Questions

If 5x ­- 3(4 ­ x) < 4x -­ 4 < 4x + 2x/3; then the value of x is

A certain sum of money becomes 4 times of itself in 30 years at a rate of simple interest. In how many years it will become double of itself at the same rate of simple interest?

If 3a=4b=6c and a+b+c=279 then a2+b2+c2 is equal to

The diagonal of a cube is 192 cm. Its volume in cm3 will be 

Simplify 437bxaz / 23ab.

In the given figure, ABCD is a square of side 14 cm. E and F are mid points of sides AB and DC respectively. EPF is a semicircle whose diameter is EF. LMNO is a square . What is the area (in sq.cm) of the shaded region?

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

If the value of √42 is approximately 6.480, then what is the approximate value of √(6/7)?