Quantitative Aptitude - Arithmetic Ability Questions

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

Pipes A, B and C are attached to an empty cistern. While the first two can fill the cistern in 4 and 10 hrs, respectively, the third can drain the cistern, when filled, in 6 hrs. If all the three pipes are opened simultaneously when the cistern is half-full, how many hours will be needed to fill the cistern?

A table is sold at a discount of 45%. If the marked price of the table is Rs 10800, then what is the selling price (in Rs) of the table?

If 2sec2x - tan2x = 5 and 0° ≤ x ≤ 90°, then x = ?

Square root of 0.9 is equal to

The number of sides of a regular polygon whose exterior angles are each 72 deg is

The length of one side and the diagonal of a rectangle are 8 cm and 17 cm respectively. Find its area (in cm2).

The pair of linear equations 3x + y = 1 and px + 2y = 5 has no finite solution if