Quantitative Aptitude - Arithmetic Ability Questions

If a regular polygon has 10 sides then the measure of its interior angle is greater than the measure of its exterior angle by how many degrees?

The value of k, for which the quadratic equation 4x2 + 4√3x + k = 0 has equal roots is

If the lengths of the two parallel sides of a trapezium are 4 cm and 6 cm and its area is 25 cm². Find the distance between its parallel sides (in cm).

If tanα = 2 - 1, then the value of  tanα - cotα = ?

Find the approximate simple interest on Rs. 2000 from March 9, 2010 to May 21, 2010 at 8.25% per annum.

The surface area of a sphere is 2464 cm². Find its diameter (in cm).

What smallest number should be added to the sum of squares of 15 and 14, so that the resulting number is a perfect square?

Which of the following is the CORRECT option for the triangles having sides in the ratio of 3:4:6?