Quantitative Aptitude - Arithmetic Ability Questions

Which of the following numbers is not a prime number?

If 12x2 - ax + 7 = ax2 + 9x + 3 has only one (repeated) solution, then the positive integral solution of a is

The total surface area of a cube is 73.5 sq.cm. Find its side (in cm).

A and B can complete a piece of work in 10 days and 15 days respectively. B starts the work and is joined by A after 5 days. If they earn a total of Rs. 60, what are their individual shares?

The heights of a cone and a cylinder are equal. The radii of their bases are in the ratio 2:1. The ratio of their volumes is:

What is the diameter (in cm) of a sphere of surface area 6.16 sq cm?

The base of a right prism is a trapezium whose the length of parallel sides are 25 cm and 11 cm and the perpendicular distance between the parallell sides in 16 cm. If the height of the prism is 10 cm, then the volume of the prism is

If selling price and cost price of an article are Rs. 684.25 and Rs. 595 respectively, then what is the profit percentage?