Quantitative Aptitude - Arithmetic Ability Questions

Find the volume (in cub.cm) of a sphere of diameter 42 cm

The ratio of present ages of P and Q is 5 : 8. Three years later their ages will be in ratio 8 : 11. What is the present age (in years) of Q?

Three toys are in a shape of cylinder, hemisphere and cone. The three toys have same base. Height of each toy is 2√2 cm. What is the ratio of the total surface areas of cylinder, hemisphere and cone respectively?

The number of pupils of a class is 55. The ratio of the number of male pupils to the number of female pupils is 5: 6. The number of female pupils is

The simplest form of 3774/2958 is

If (4/5)A = 3B = (2/3)C, then what is A : B : C?

If x+y+z = 0, then what is the value of x23z+y33xz+z23x ?

If tan(A/2) = x, then the value of x is