Quantitative Aptitude - Arithmetic Ability Questions

What is the effective discount (in %) on two successive discounts of 20% and 10%?

What is the measure of an interior angle of a regular dodecagon?

A piece of work can be done by 16 men in 8 days working 12 hours a day. How many men are needed to complete another work, which is three times the first one, in 24 days working 8 hours a day?

The radius of a sphere and right circular cylinder is 'r'. Their volumes are equal. The ratio of the height and radius of the cylinder is:

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

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

What is the equation of the line passing through the point (0,­4) and making an angle of ­45° with the positive x­axis?

If 2/3 of a pizza costs Rs.300, then 3/5 of a pizza will cost