Quantitative Aptitude - Arithmetic Ability Questions

If 2x -­ 3 ≤ 5 + x and 5 -­ x < 1 + 5x; then x can take which of the following values?

How many diagonals are there in octagon?

If cos(A-B) - cos(A+B) = x, then the value of x is

The tangents drawn at points A and B of a circle with centre O, meet at P. If ∠AOB = 120° and AP = 6 cm, then what is the area of triangle (in cm2) APB?

One internal angle of a rhombus of side 12 cm is 120°. What is the length of its longer diagonal?

Product of digits of a 2-digit number is 24. If we add 45 to the number, the new number obtained is a number formed by interchange of the digits. What is the number?

If the angles of a triangle are in the ratio of 2:3:4, then the difference of the measure of greatest angle and smallest angle is

The successive discount of 15%, 20% and 25% on an article is equivalent to the single discount of