Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized for You

we will pick new questions that match your level based on your Timer History

Track Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Re: If the radius of a right circular cylinder is doubled and th [#permalink]
25 Jan 2018, 04:21

Set up the formula for the volume of a right circular cylinder: Volume = height * radius² * π now plugin the given factors for each variable: 3 * h * (2*r)² * π (note that the radius * 2 must be taken to the power of 2) solve to get: V = 3 * h * 4 * r² * π which equals V = 12 * height * radius² * π. Compared to the original volume formula, this one is 12 times larger. -> answer E is correct