Quantitative Aptitude - Arithmetic Ability Questions

If the sum of the measures of all the interior angles of polygon is 1800°, find the number of sides of the polygon?

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

The sum of the present ages of a father and his son is 60 yrs. Six years ago, fathers age was five times the age of the son. After 6 yrs, son's age will be

The mean of marks secured by 35 students in division A of class X is 65, 45 students of division B is 61 and that of 70 students of division C is 59. What is the mean of marks of the students of three divisions of Class X?

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

Simple interest on a certain sum of money for 3 years at 8% per annum is half the compound interest on Rs 1200 for 2 years at 10% per annum. The sum placed on simple interest is

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

97 x 97 = ?