Quantitative Aptitude - Arithmetic Ability Questions

Find the range of the data : 11,13, 9, 17, 13, 19, 10, 11

The length, breadth and height of a cuboid are in the ratio 19 : 11 : 13. If length is 30 cm more than height, then what is the volume (in cub.cm) of this cuboid?

The total surface area of a hemisphere is 166.32 sq cm, find its radius?

At least one diagonal bisects the other in a _____.

A right circular cylinder is partially filled with water. Two iron spherical balls are completely immersed in the water so that the height of the water in the cylinder rises by 4 cm. If the radius of one ball is half of the other and the diameter of the cylinder is 18 cm, then the radii of the spherical balls are

A solid brass sphere of radius 2.1 dm is converted into a right circular cylindrical rod of length 7cm. The ratio of total surface areas of the rod to the sphere is

If a young son works quickly for 2 hours and prepares 16 items in a day, and his old father works slowly for 8 hours and prepares 24 items in a day, which of the following is true?

The average of 10 numbers is X and one of the number is 38. If 38 is replaced with 19, then what will be the new average?